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Check out the new line of RoadRunner II electric bike kits for 16 inch rims! Offering both front and rear wheel drive, ElectricRider doesn't want anyone to be left out, and you folks out there with small rims have been left out far too long. As any regular bicycle has a purpose, those with 16 inch rims also have a purpose. The ability to take your bicycle onto a bus, train, or toss it in your trunk has some major advantages, but what about when you're actually riding that bike? Wouldn't it be nice if you could pull that bike out of your trunk, turn the switch to the ON position, and use nothing more than your thumb or wrist to complete the rest of your journey? Whether you're commuting to work and don't like showing up sweaty, or trying to go places your legs can't take you alone, the RoadRunner II hub motor kits will add function and purpose to whatever your application might be.

If your bicycle has 16 inch wheels, the RoadRunner II kits are some of the most powerful systems you can install. Choose from a front or rear motor, and either 36 volt or 48 volt controller. The higher the voltage, the faster your top speed. Torque and acceleration are relatively the same between all RoadRunner II kits, and there's no difference in performance between front and rear wheel drive. The RoadRunner II motors work with rim brakes (not disc brake compatible) and are easy to install. The kits include the motor laced to a 16 inch rim, either 36V or 48V brushless controller, throttle, and APM-Display that shows your speed, distance traveled, and offers the rider some programming capabilities such as current limits and 3 preset speed settings. The battery is NOT included in the kit itself because there are several batteries you can choose from depending on your range and weight requirements.


ElectricRider offers several battery chemistries, each having their own advantages and disadvantages. There's always a trade-off when it comes to battery technology, whether you're trading cost for battery life, weight for battery life, cost for weight, etc. Below is a brief description of each chemistry and what they offer:

Sealed Lead Acid (SLA) Batteries: SLA Batteries are almost ancient technology at this point, but they are inexpensive and reliable. You can expect about 250 recharge cycles from SLA batteries. A 48v 20ah pack weighs approximately 58lbs, although most folks use 12ah SLA batteries to keep weight down. If you don't want that kind of weight on your vehicle, or need more range than what a 12ah battery can offer, you'll want one of the lithium options below.

Lithium Iron Phosphate (LiFePO4) Batteries: LiFePO4 is one of the more matured lithium chemistries, and one of the most popular for ebikes. They are a very safe lithium chemistry and are rated for 1500-2000 recharge cycles. A 48v 20ah LiFePO4 battery weighs approximately 23lbs, less than half the weight of the equivalent SLA battery.

Lithium Manganese (LiMn): Lithium Manganese batteries have a focus on high energy density. If you need to fit a high capacity battery into a small space, Manganese is the right choice for you. Manganese is rated for 800-1000 recharge cycles and is also a very safe lithium chemistry. A 48v 20ah lithium manganese battery weighs approximately 13lbs, which almost makes LiFePO4 look heavy and big. We almost always recommend Manganese chemistry for 72v systems due to the amount of battery you'll be carrying.
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Electric Bike Kit for 16 inch Front - RoadRunner II Electric Bike Kit for 16 inch Rear - RoadRunner II Electric Bike Kit for 16 inch - RoadRunner II
Front RoadRunner II 3625 Hub Motor Kit for 16 inch Wheels Rear RoadRunner II 3625 Hub Motor Kit for 16 inch Wheels Front RoadRunner II 4825 Hub Motor Kit for 16 inch Wheels
Electric Bike Kit for 16 inch Rear - RoadRunner II
Rear RoadRunner II 4825 Hub Motor Kit for 16 inch Wheels