Description:
"The RoadRunner 4820 Electric Bike Conversion Kit turns your favorite pedal bicycle into a great non-polluting commuting vehicle. With the RoadRunner 4820, you don't need to know anything about electrical wiring. We ship your system already wired for a fast, easy installation. Just replace your standard front wheel with our electric wheel, attach the throttle and cruise control (optional on some models) to your handlebar, attach the power bag to your rack (rack included), plug in the connectors, and ride. The Roadrunner 4820 48-volt system is available on 16, 20, 24, 26 inch front wheel.
* No license, no insurance, no parking problems. Ride anywhere you can ride a pedal bike.
* Use the motor alone, pedal, or use both at the same time.
* Batteries and charger included. This is a complete system; nothing else to buy.
RoadRunner motors are brushless, meaning the energy is transferred to the motor in a more sophisticated and efficient way. RoadRunner motors have no brushes to wear out, but brushes last a long time. The main advantage that the brushless motor is more efficient, meaning you get more miles per charge.
Range (distance per charge) depends on many factors including tire tread pattern, tire pressure, weight of rider, wind, hills, stop-and-go, rider driving habits. You can expect 10-14 miles from the RoadRunner using 10AH batteries, no pedaling, regular city traffic, running as hard and fast as we can. Adding pedal power helps, particularly at start-up. An experienced rider willing to do some pedaling and keeping speed under 20 MPH may get more than 20 miles on a charge. As with a car, the faster you take-off and the faster you run, the more fuel per mile you will use.
RoadRunner front motors are available on 16 inch, 20 inch, 24 inch and 26 inch wheels. Rear 7-speed and 8-speed wheels are available by special order. Dropout width is 100mm for front wheels and 135mm for rear wheels. The axle is 9mm in diameter. RoadRunner motors are 75 mm wide, extending 65 mm up the fork from the axle. Weight is 15.5 pounds laced to the rim.
Crystalyte kits include an electric motor mounted in the hub of the wheel, speed controller, key switch, connectorized wiring, fuse, batteries, charger, throttle with gauge (thumb or twist - your choice), wire ties, rack, battery bag, cruise control, brake inhibits. There is nothing else to buy. The entire kit comes pre-wired.
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