40e Manufacture a Full Line of Fine Products
from
"Do It Yourself" Kits To "Ready to Ride"

 

 

Batteries Casing Prototype Structure

By

David Beverstein    

 

Electric MTB Specs.

Full suspension Alumiumum frame downhill mountain bike

Motor and speed control weight  6kg
Power 48v   4 Batteries 12v  7.2ah  with seat post carrier weight 12.75kg
Battery charger 1.2 ampere current limited  switching type, charging SLA batteries to 2.45v/cell or 58.8v
Tires 26" X 2.30 knobby tires @ 40psi
Top speed with 409A motor 32km/hr@ 7amps 52v (fresh charge) higher torque motor
Top speed with 309B motor 42km/hr@15amps 51v (fresh charge) low torque motor
Installation times
Install spokes and true front wheel hub and rim  2 hrs
Install front wheel , speed control ,  throttle ,wire battery to controller  3 hrs