36V Brushless DC hub motorBattery Box Containing LiFePO4 battery aDC ControllerInstrumentation
OwnerMark Warner
LocationTucson, Arizona US map
Email email image
Vehicle1996 Gary Fisher Joshua X
Full-suspension mountain bike converted to electric commuter vehicle.
Motor Amped Bikes 36V Brushless DC
Rear hub brushless DC motor
DrivetrainAmpedbikes motor & controller with lithium iron phosphate battery
Controller Amped Bikes 36V Controller
Intelligent Brushless Controller for eBike
Batteries1 Ping LiFePO4, 48.00 Volt, Lithium Iron Phosphate
48 Volt 15AH LiFePO4 Battery with integrated BMS.
System Voltage48 Volts
Charger off-brand charger
The nominal voltage of the battery is 48V, but the charger (which came with the battery) routinely takes it up to 60V. No ill effects from this overvolting have been experienced.
HeaterArizona Sun ;-)
DC/DC Converter
None.
InstrumentationInstrumentation: Cycle Analyst CA-SA
Top Speed35 MPH (56 KPH)
The bike is currently gearing limited to 25mph, but with a larger chainring on the front I have exceeded 35mph on flat-level ground; this is a direct result of running a higher than normal voltage.
AccelerationRelatively strong.
Range25 Miles (40 Kilometers)
I routinely ride round trip to/from work, which is a total distance of 20 miles, including about 1700 feet of total elevation gain on the return ride home. There's plenty left in the pack after that full commute.
EV Miles
Current:1,250 Miles (2,011 Kilometers)
 
    As of 5/5/2011
Seating Capacity1 adult
Curb Weight60 Pounds (27 Kilograms)
TiresSpecialized Armadillos with liners and heavy duty tubes.
Conversion Timelong weekend to convert. Hardest part, by far, was figuring out how and where to mount the battery on the bike. In the end, I used an old fishing tackle box that was bolted to an aluminum bracket that I constructed. The bracket cantilevers off the front of the bike. This gives good weight distribution, but does feel a little funny for first-time riders on the bike.
Conversion Cost$700 plus the cost of the bike (which I already owned)
Additional FeaturesWuxing brake levers, which are wired to kill power whenever they are applied.
I highly recommend an electric bike for a first time conversion project. You can purchase nearly everything to do the conversion off the shelf. It's also really fun to ride and gets tons of attention from pedestrians and other bicyclists.

code by jerry