Free shipping to Lower 48 US States

1-855-743-3279 support@hilltopperbikes.com
0

Free shipping to Lower 48 US States

1-855-743-3279 support@hilltopperbikes.com
beat traffic, stay healthy, have fun!

Sprinter Electric Bike Kit

  • Free Shipping to Lower 48
  • Fits Most Bikes & Adult Trikes
  • Pre-Order Sale! $50 off until June 22
(110 reviews)

Conquer that hill and grin big as you activate your new super powers! The compact & lightweight 250W motor provides a top speed of 16 mph at the push of a button. New features this year include an easy to remove water bottle battery, a battery lock, disc brake compatible hub, a USB charging port for your phone, a thumb throttle that allows you to control how much power the motor gives you, a higher efficiency Hilltopper motor that gives more torque for energy used, and an upgrade to 36 volts. This is the original Hilltopper that started the e-bike revolution, updated for 2020. Rugged. Simple. Awesome!

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$599 $549
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FREE SHIPPING TO LOWER 48 US STATES
  • $100 off your purchase when you buy 2 kits or ebikes with code 2xTheFun
  • Pre-Order now! Next batch Ships June 22

Specifications

  • Speed16 mph
  • Range12+ miles
  • Power250 Watts
  • Motor36 Volt Front Wheel Drive
  • Battery36 Volt 5.4 Ah Lithium-Ion
  • ThrottleVariable Speed
  • Battery GaugeNo
  • Battery LockYes!
  • Weight13 lbs
  • Free ShippingYes!
  • Disc Brake CompatibleYes!

Install it like this

Your old bike is your new bike!

Convert your old bike to an electric one in just a few minutes. It's easy, quick and fun. All you need is a Hilltopper kit and a friend to race when you're done!

Components

Independent Review

The Original Hilltopper

This is the kit that started the electric bike revolution, updated for the 21st century.

  • 1.

    Seattle Born & Bred since 2008.

  • 2.

    Rugged & versatile kit for people who want a boost on their ride. For riders who want more power we recommend the Ranger, Horizon, or Summit.

  • 3.

    Performs best as added power to your pedaling. Great for people who love to ride bikes but want to flatten out the hills and cruise at a higher speed.

  • 4.

    Cuts your commute time by 25% and how much you pay for parking or Uber by 100%.

  • 5.

    Fits most bikes & adult trikes. Minimalist design gives hidden super powers appeal (folks can't tell its an e-bike).

Frequently asked questions about our kits

  • Electric Bike Kits
  • Installation & Charging Instructions
  • Range of the Battery and Speed
  • Warranty, Returns & Shipping
  • Will It Fit My Bike?

Electric Bike Kits

  • Yes, all Hill Topper wheels are disc brake compatible with standard spacing and 6-bolt rotor attachment.

    All of our wheels are also rim brake compatible giving you the most options to fit your bike!

  • Why are Hilltopper Bikes 1/2 the price of other e-bikes on the market? Because we sell direct to you, the customer. Our mission is to create a sustainable future, two wheels at a time and we do that by making e-bikes affordable for you. We intentionally don't sell through dealers, distributors, or retailers because that way of selling means a higher price tag for you. We build our kits and bike wheels with love and care here in Seattle and sell direct to you, so you won't see the large retail markup that would be present if you were buying from a third party. That way you're always getting the best deal on your electric bike.

  • It depends on how fast you want to go, and how steep the hill.

    The 36v, 350 watt kits and bikes can go 20 mph with minimal pedaling. This is the legal limit in most of the US for e-bikes so it's enough power for most bikes. This is a great power for steeper hills, faster commutes & carrying bigger loads. It's like having two Soul Cycle instructors also pedaling for you.

    The 24v, 250 watt kits and bikes can go 15 mph with minimal pedaling on flat ground, but they perform best as a boost to your pedaling with pedaling required on hills. Perfect if you are looking for an added boost to your ride at an affordable price. Cuts your commute time by 25%, flattens out that hill by 50% & puts a smile on your face.

    The 48v, 750 watt Summit kit can go 20 mph with minimal pedaling. This is the legal limit in most of the US for e-bikes. The motor could go faster, but it is limited at 20 mph for safety and to remain street legal in the US (unlimited it could go 30+ mph). The 750 watt motor can carry large loads up steep hills and accelerates quickly. Perfect if you are looking to cruise consistently at 20 mph over varied terrain or climb absurdly steep and long hills while hauling groceries. It's more power then you might need. But its a lot of fun and gives you the piece of mind that you can accelerate out of any sticky situation.

  • All Hilltopper electric bikes and kits have a maximum speed of 20 mph. This keeps them street legal and compliant with state laws and city ordinances in the US.

    For choosing a power system, here's what to keep in mind:

    The 36v, 350 watt kits (Ranger & Horizon) can go 20 mph with minimal pedaling. This is great for steeper hills, faster commutes & carrying bigger loads.

    The 36v, 250 watt kits (Sprinter) can go 15 mph with minimal pedaling on flat ground, but they perform best as a boost to your pedaling with pedaling required on hills. Perfect if you are looking for an added boost to your ride at an affordable price. Cuts your commute time by 25%, gives a boost up hills & puts a smile on your face.

    The 48v, 750 watt Summit kit can go 20 mph with minimal pedaling. This is the legal limit in most of the US for e-bikes. The motor could go faster, but it is limited at 20 mph for safety and to remain street legal in the US (unlimited it could go 30+ mph). Perfect if you are looking to cruise consistently at 20 mph over varied terrain or climb absurdly steep and long hills while hauling groceries. It's more power then you might need. But its a lot of fun and gives you the peace of mind that you can accelerate out of any sticky situation.

  • There are many different types of bicycles and adult tricycles in the world today, but each Hilltopper conversion kit has been carefully designed to fit as many of these models as possible. All Hilltopper wheels are designed to be compatible with both rim brakes and disc brakes.

    There are a few more factors used to confirm that the Hilltopper will fit your bike. 1) Wheel Size. 2) Hub and Fork spacing. 3) Fork Dropout Type. See FAQ Will It Fit My Bike? for more information.

  • For our conversion kits, and on some of our bikes, we offer two methods for controlling the motor manually, the GripSwitch, or an Adjustable Speed Throttle. Both serve the same purpose, but go about it differently and offer different installation options.

    Adjustable Speed Throttle:

    • Controlling the motor work just like a gas pedal in a car. Push it all the way for max speed, push it just a little for lower speeds. This means that just like in a car, you are in total control of your speed, but also means the more aggressive you "drive" the less "gas" mileage you may get on a full charge.
    • Installing the throttle is a little harder than the GripSwitch, but still pretty simple. It does require that you remove your handle bar grip first.
    • When considering the Throttle option, keep in mind that it has a maximum clamp diameter of 22.2 mm. This means there can be complications installing it on drop bars for handle bars with a larger diameter.
    • Not compatible with our older 24V conversion kits or electric bikes.
    • If you are interested in upgrading your old 24V kit to use this type of throttle, please see our new Universal Replacement Battery pack. Update to a 36V battery to use this throttle.

    The GripSwitch:

    • Only available on our 24V electric conversion kits and bikes from 2019 and earlier.
    • Easiest possible installation ever conceived. Just strap the Velcro where ever you like on your handle bars. This means it can go on the right-hand or left, top or bottom, middle or end. Many people place it to be pushed by thumb, others like to set it as a trigger under their index finger. The possibilities are nearly endless and the choice is yours.
    • Compatible with absolutely any handlebars.
    • Controlling the motor is equally simple. Since it is a button, it's just on or off. Just hold the button when you want a boost, release when you don't. We have fine tuned the motor controller to conserve energy, minimizing wasted power to keeps you rolling longer.
    • For all returns or warranty claims contact support@hilltopperbikes.com
    • 30-day money back guarantee. Returns of undamaged conversion kits may be issued full refunds less a $50.00 restocking fee. Returns of undamaged complete bikes may be issued full refunds less a $125.00 restocking fee.
    • Warranty only applies to original owner (non-transferable).
    • 1-year standard warranty on all batteries. 2-year standard warranty on all other components.
    • Warranties can be used for an exchange of a component only once.
    • Customer pays return shipping on warrantied component inspections. Please note some battery returns may require special documentation and packaging, and these instances will encounter extra fees. This is in order to correctly comply with lithium battery shipping regulations. For all return shipping we recommend using a local shipping service like FedEx office or the UPS Store.
    • If you have a quality issue with a product please contact support to help diagnose the problem. If a product does not meet our high quality standards, then we will issue you a replacement component or fix the original at no additional cost. Replacement components will only be sent after we have received your returned component and finished an inspection to determine the cause of any problems. Hill Topper Bikes is not responsible for return shipping.
    • Do-It-Yourself modifications, normal wear, and damage due to gross negligence or abuse are not covered by the warranty.

    Return Address:

    Please mail your package in a traceable method to the address below. Include a note with your name, your order number and describing your situation and/or request.

    Hill Topper Bikes
    Technical Support Team
    920 S. Holgate St. #106
    Seattle, WA 98134
    USA

Installation & Charging Instructions

  • Yes, all Hill Topper wheels are disc brake compatible with standard spacing and 6-bolt rotor attachment.

    All of our wheels are also rim brake compatible giving you the most options to fit your bike!

  • The summit is our most powerful conversion kit, with lots of additional features. It takes longer to install then other kits, but the speed, power, and versatility makes it totally worth it.

    Download the Summit installation guide here.

  • For our conversion kits, and on some of our bikes, we offer two methods for controlling the motor manually, the GripSwitch, or an Adjustable Speed Throttle. Both serve the same purpose, but go about it differently and offer different installation options.

    Adjustable Speed Throttle:

    • Controlling the motor work just like a gas pedal in a car. Push it all the way for max speed, push it just a little for lower speeds. This means that just like in a car, you are in total control of your speed, but also means the more aggressive you "drive" the less "gas" mileage you may get on a full charge.
    • Installing the throttle is a little harder than the GripSwitch, but still pretty simple. It does require that you remove your handle bar grip first.
    • When considering the Throttle option, keep in mind that it has a maximum clamp diameter of 22.2 mm. This means there can be complications installing it on drop bars for handle bars with a larger diameter.
    • Not compatible with our older 24V conversion kits or electric bikes.
    • If you are interested in upgrading your old 24V kit to use this type of throttle, please see our new Universal Replacement Battery pack. Update to a 36V battery to use this throttle.

    The GripSwitch:

    • Only available on our 24V electric conversion kits and bikes from 2019 and earlier.
    • Easiest possible installation ever conceived. Just strap the Velcro where ever you like on your handle bars. This means it can go on the right-hand or left, top or bottom, middle or end. Many people place it to be pushed by thumb, others like to set it as a trigger under their index finger. The possibilities are nearly endless and the choice is yours.
    • Compatible with absolutely any handlebars.
    • Controlling the motor is equally simple. Since it is a button, it's just on or off. Just hold the button when you want a boost, release when you don't. We have fine tuned the motor controller to conserve energy, minimizing wasted power to keeps you rolling longer.
  • The 36 V Hilltopper electric bike conversion kit is a step up from our original systems both in tech and performance. The bigger motor offers more power while the Horizon battery give you more miles on the road and the new throttle offers a bit more control.

    Here are the basic steps you'll need to follow:

    1. Remove your bike's original front wheel.
    2. Install your new Electric Bike Wheel, being careful to ensure all of the axle hardware is in place.
    3. Unlock and remove the battery from the mount(Horizon and Sprinter Bottle Only).
    4. Affix the battery mount to your bike's water bottle mount or a rear carrier, then reattach the battery.
    5. Remove your your handle bar grip. (You can choose right-hand or left, it's totally up to you.)
    6. Install the throttle on the handle bars. (It can be position any way you like, push forward, pull back, right-hand or left. It's dealer's choice.)
    7. Connect it all with the two plugs at the ends of your Cable Set.

    For more detailed instructions, check out the booklet that came with your kit or for digital downloadable PDF, click Here for Horizon Kits, click Here for Ranger kits, or click Here for the new 2020 Sprinter Kit.

  • The 24 V Hilltopper electric bike conversion kit is our flagship model, the one that stated it all. We've refined it over the years, but the core principle remains the same; Simplicity. And that's exactly what you'll find here. No bells and whistles, just what you need, this keeps you bike clean and installation a breeze.

    There are five simple steps to installation:

    1. Remove your bike's original front wheel.
    2. Install your new Electric Bike Wheel, being careful to ensure all of the axle hardware is in place.
    3. Strap on the Battery Pack where ever you see fit.
    4. Using velcro, place the GripSwitch button on your handle bars where ever comfortable.
    5. Connect it all with the two plugs on your Cable Set.

    For more detailed instructions, check out the booklet that came with your kit or download the PDF by clicking here.

    These basic principles apply to all of our24V kits from 2019 and prior.

  • For information on storing you battery, please hop over to FAQ When Should I Charge My Battery?

     

  • You can charge your HillTopper whenever you like! All of our batteries are smart batteries with no memory affect, so there is no need to drain it fully before recharging like you would with older battery types like NiCad or others.

    Generally we suggest simply charging it after every ride, or at the end of the day if you are a regular commuter. That way you always know your battery is ready to go when you are.

    If you are putting the bike away for the winter or just know you won't use it for some time, we suggest charging it fully first and storing it in doors. For the absolute best life of your battery we would also suggest plugging it back into the charger every month or so to keep it topped up. Before you ask, no, unfortunately we cannot suggest simply leaving the battery plugged into the charger long term.

  • For all of our electric bikes and conversion kits we've made sure charging is easy as can be. Just a few simple steps:

    1. Grab the charger supplied with your Hill Topper and plug it into the wall. For the best possible performance we recommend plugging directly into the wall, avoiding the use of extension cords and power strips whenever possible.
    2. Once the green light on the charger comes on, go ahead and plug the barrel end into the battery.
    3. When the charger is connected to the battery the light should turn from green to red to indicate that it is filling up the battery.
    4. As soon as the battery is full the light will turn back to green so you know it's done.

    That's it! Follow these steps and you can rest assured you'll be ready to roll!

Range of the Battery and Speed

  • 36V 2020 Sprinter battery has 10 - 20+ miles of range.

    36V Universal Battery Replacement has 20 - 25+ miles of range.

    48V Summit battery has 25 - 40+ miles of range.

    Mileage rates are based on a 170 pound rider on a 30 pound bike on a flat paved surface, with no wind, using the motor and not pedaling. Your mileage may vary, though most people get more than advertised mileage. For the best possible mileage we suggest pedaling anytime the motor is engaged.

     

  • All Hilltopper electric bikes and kits have a maximum speed of 20 mph. This keeps them street legal and compliant with state laws and city ordinances in the US.

    For choosing a power system, here's what to keep in mind:

    The 36v, 350 watt kits (Ranger & Horizon) can go 20 mph with minimal pedaling. This is great for steeper hills, faster commutes & carrying bigger loads.

    The 36v, 250 watt kits (Sprinter) can go 15 mph with minimal pedaling on flat ground, but they perform best as a boost to your pedaling with pedaling required on hills. Perfect if you are looking for an added boost to your ride at an affordable price. Cuts your commute time by 25%, gives a boost up hills & puts a smile on your face.

    The 48v, 750 watt Summit kit can go 20 mph with minimal pedaling. This is the legal limit in most of the US for e-bikes. The motor could go faster, but it is limited at 20 mph for safety and to remain street legal in the US (unlimited it could go 30+ mph). Perfect if you are looking to cruise consistently at 20 mph over varied terrain or climb absurdly steep and long hills while hauling groceries. It's more power then you might need. But its a lot of fun and gives you the peace of mind that you can accelerate out of any sticky situation.

  • Mileage rates are based on a 170 pound rider on a 30 pound bike on a flat paved surface, with no wind, using the motor and not pedaling. Your mileage may vary, though most people get more than advertised mileage. For the best possible mileage we suggest pedaling anytime the motor is engaged.

     

  • For all of our electric bikes and conversion kits we've made sure charging is easy as can be. Just a few simple steps:

    1. Grab the charger supplied with your Hill Topper and plug it into the wall. For the best possible performance we recommend plugging directly into the wall, avoiding the use of extension cords and power strips whenever possible.
    2. Once the green light on the charger comes on, go ahead and plug the barrel end into the battery.
    3. When the charger is connected to the battery the light should turn from green to red to indicate that it is filling up the battery.
    4. As soon as the battery is full the light will turn back to green so you know it's done.

    That's it! Follow these steps and you can rest assured you'll be ready to roll!

Warranty, Returns & Shipping

  • Why are Hilltopper Bikes 1/2 the price of other e-bikes on the market? Because we sell direct to you, the customer. Our mission is to create a sustainable future, two wheels at a time and we do that by making e-bikes affordable for you. We intentionally don't sell through dealers, distributors, or retailers because that way of selling means a higher price tag for you. We build our kits and bike wheels with love and care here in Seattle and sell direct to you, so you won't see the large retail markup that would be present if you were buying from a third party. That way you're always getting the best deal on your electric bike.

  • Hilltopper kits are hand built in batches by our team of craftspeople, and each kit is rigorously tested before leaving our shop.

    For full kit purchases and any purchases containing a battery, please expect 7 - 14 business days for our team to build, test, and ship your kit.

    For smaller items, such as accessories or components, please expect 1 - 3 business days for our team to process and ship your items.

    For more detailed information, please check the product page of each kit for the latest updates regarding availability.

  • You read that right, free shipping* on all orders!

    (*Applies only to orders in the contiguous 48 states.)

  • If you are unsatisfied for any reason with any of our products you can return it for a refund up to 30 days after purchase.

    • For new, undamaged items to be returned for refund, shipping is free plus a $50 restocking fee per kit and a $100 restocking fee per bicycle. Please contact support@hilltopperbikes.com or 1 800 805 9053 x 2 to initiate this type of return.
    • Customer pays return shipping for warrantied component inspections. Please note some battery returns may require special documentation and packaging, and these instances will encounter extra fees. This is in order to correctly comply with lithium battery shipping regulations. For all return shipping we recommend using a local shipping service like FedEx office or the UPS Store.

    Return Address:

    Please mail your package in a traceable method to the address below. Include a note with your name, your order number and describing your situation and/or request.

    Hill Topper Bikes
    Technical Support ATTN: (Your Order #)
    920 S. Holgate St. #106
    Seattle, WA 98134
    USA

  • We stand behind the quality of our products:

    • 30 day money back guarantee on all orders. Returns of undamaged conversion kit may be issued a full refund less a $50.00 restocking fee. Returns of undamaged electric bikes may be issued a full refund less a $100.00 restocking fee. For free shipping on items to be returned for refund, please contact us.
    • Lifetime technical support. Reach out to support@hilltopperbikes.com for help from our team of experts.
    • 1 year extensive warranty on all bikes and conversion kits. See warranty & return policy for details.
    • For all returns or warranty claims contact support@hilltopperbikes.com
    • 30-day money back guarantee. Returns of undamaged conversion kits may be issued full refunds less a $50.00 restocking fee. Returns of undamaged complete bikes may be issued full refunds less a $125.00 restocking fee.
    • Warranty only applies to original owner (non-transferable).
    • 1-year standard warranty on all batteries. 2-year standard warranty on all other components.
    • Warranties can be used for an exchange of a component only once.
    • Customer pays return shipping on warrantied component inspections. Please note some battery returns may require special documentation and packaging, and these instances will encounter extra fees. This is in order to correctly comply with lithium battery shipping regulations. For all return shipping we recommend using a local shipping service like FedEx office or the UPS Store.
    • If you have a quality issue with a product please contact support to help diagnose the problem. If a product does not meet our high quality standards, then we will issue you a replacement component or fix the original at no additional cost. Replacement components will only be sent after we have received your returned component and finished an inspection to determine the cause of any problems. Hill Topper Bikes is not responsible for return shipping.
    • Do-It-Yourself modifications, normal wear, and damage due to gross negligence or abuse are not covered by the warranty.

    Return Address:

    Please mail your package in a traceable method to the address below. Include a note with your name, your order number and describing your situation and/or request.

    Hill Topper Bikes
    Technical Support Team
    920 S. Holgate St. #106
    Seattle, WA 98134
    USA

Will It Fit My Bike?

  • Yes, all Hill Topper wheels are disc brake compatible with standard spacing and 6-bolt rotor attachment.

    All of our wheels are also rim brake compatible giving you the most options to fit your bike!

  • There are many different types of bicycles and adult tricycles in the world today, but each Hilltopper conversion kit has been carefully designed to fit as many of these models as possible. All Hilltopper wheels are designed to be compatible with both rim brakes and disc brakes.

    There are a few more factors used to confirm that the Hilltopper will fit your bike. 1) Wheel Size. 2) Hub and Fork spacing. 3) Fork Dropout Type. See FAQ Will It Fit My Bike? for more information.

  • The type of drop out your bike has is very important. The dropout is the place at the end of your fork where the wheel attaches to the rest of the bike.

    For the longest time there was really only one type available; the "open" or "slotted" type. This is the familiar U shape you have likely seen on most every bike you can remember. Your bike must have this type for our electric bike conversion kits to fit.

    Another type of dropout that is found on a small number of high-end bikes is the "closed" dropout. This is for use only with "thru-axle" hubs, and our e-bike motors are unfortunately not compatible.

     

  • Our hubs have a 100 mm(or about 3.9 inches) axle, which is standard for most bikes. To confirm that our electric bike hub will fit into the fork on your bike we need to check the spacing of "the fork." The fork is the two metal arms that hold either side of your front wheel. If there is about 3.9" (100mm) the Hill Topper should fit great!

    Since our electric bike motors tend to be a bit taller than the average bike hub, there is another fork spacing consideration to look for. Most bike hubs are only about 2-3" in diameter, but an e-bike motor can be up to 7" tall. As such, we need to ensure that the 4" spacing mentioned above does not diminish too quickly above the dropout. For the best possible fit, that 100mm/4" spacing should be maintained at least 3" above the dropout.

  • We offer all of the most common wheel sizes on the market today, including; 700c/29", 26", 24", and 20" wheels.

    You can find your wheel size printed on the side of the tire on your existing wheel.

    Please note:

    • We carry 700c/28"/29"(all the same rim diameter - 622mm), 26", 24" and 20" wheels.
    • We do not carry 27" or 27.5".
    • No custom options are available at this time.

Accessories for your Sprinter Electric Bike Kit

Essentials

Hilltopper T-Shirt

The Hilltopper wheel art in classic black & white style. Premium 50% poly / 50% cotton blend. Soft and comfortable.

Price from

$10

More

Essentials

Tiny & Mighty Light Set

Don't get caught riding in the dark again. These small silicone lights are a whole lot of fun and are remarkably powerful for their size. Set includes a red rear light, and a white front light. Three modes including bright & constant, traditional flashy, or super fast lets have a dance party right now flashy. Simple silicone straps connect to your handlebars, seat stays, or anywhere you need a little extra visibility. Batteries included. Did we mention they are only $9?

Price from

$9

More
110 reviews for Sprinter Electric Bike Kit
Christopher

Bought this for my wife’s Felt fitness bike. Our city has a lot of paved bike trails that go under the city streets instead of over. Some have some really steep hills and this helps her get up to the top. She absolutely loves it!!

David K.

I put the Sprinter kit on my wife’s bike. The bike is a run of the mill Schwinn Network 3 speed with 700 tires.

I installed the kit in under an hour. The only thing that took any time was ensuring that the wires all ran neatly, battery placement, and throttle placement. I have GPSed the bike at 20 MPH without any pedaling, on flat ground. We have been 6 miles with no issues. I do wish there was some indication of battery power remaining.

The motor is silent. I was running and she was riding, I could not tell when she was using the motor or pure pedaling.

We use the bike when camping and for rides in our rural neighborhood. The wife does not like to get too worn out during rides and that has always limited her desire to go on rides.

No longer! Going up out hills she can use the Sprinter for either pedal assist or to do the work for her. We now go on rides together so I can get the workout I want and she can cruise or workout.

The locking battery is going to be great for rides to stores/restaurants during our trips to Panama City Beach Florida. If we are really worried about security, we will just take the battery with us. It looks like a liter metal water bottle so it will fit in any backpack for time off the bike.

If longevity matches the ease of installation and smooth operation I may have to get another kit for my vacation bike. After all who wants to work out when you could potentially spill your summer handlebar-mounted beverage!!

Becky

WOW!!! I have been dreaming of owning this kit for over a year. I would put it in the cart, then take it out. So glad I purchased this kit. It has taken my bike riding to the next level. I just needed something to smooth out those hills. I am working on getting fit and just needed a boost to help get back in to bike riding. The first day out I doubled my milage.

Nichole

I love my new wheel- Zoom, Zoom!

Steve L.

Very easy to put together, quality is good very happy with this kit. Thank you

Bob H.

I’ve been looking at the Hilltopper bike kits for awhile and decided to buy a sprinter kit for me and my wife’s bike. We are in our late fifties and enjoy riding our bikes. These kits are amazing! We can’t wait to go places that were originally too far or hilly to ride. They are very easy to install and look great! The water bottle battery design is pure genius and easy to install and charge. The USB port is very handy. The sprinter kit has more than enough power and is so quiet and smooth. I love the variable throttle to be able to have just the right amount of power and speed. These make bike riding so much fun! The range of the battery is amazing and depending on how much peddling you want to add I never worry about running out of juice. These are one of the best investments I have made and adds to our quality of life. Thank you Hilltopper for making such a great product!!

Kenneth Dougherty

So easy to convert my bike to a Super Bike! Less than an hour to install amount battery and run wires. So easy! Love my Sprinter Retro Del Sol.

Elizabeth D.

I am SO happy with the Hilltopper Sprinter kit. I am a recreational rider, and mostly just like cruise around town. But Seattle is a VERY hilly place, and it’s really nice to have this kit on my bike. I haven’t met a hill that I can’t go up with this thing, and I love that the battery is low profile and looks just like a water bottle.

Wayne Leong

Perfect gift for my wife!!

Made in Seattle Since 2008