Hi. I've got a friend who will be setting up an electric assist bike for his college-age grandson for around-town commuting. He bought the bike already. It's a bike sold by REI, the Electra Townie. What he's interested in is a fairly low-power (say, 250 watt) mid drive kit with torque sensing that he can readily adapt to this bike. My friend is quite competent in the realm of mechanics and electronics, though he's just now getting involved in the realm of electric assist for bikes. Can anyone offer some recommendations for the type of kit he's looking for? As for a battery, that will likely be taken care of: I plan to donate to him an older 48V 10 AH battery of mine that likely has a few bad cells; he'll be able to put together using bits and pieces of that something suitable for this project. TIA
Oops. Looks like maybe I should have posted this in E-Bike General Discussion. Request: can a mod please move it there for me?
Minimalist-assist advocate. Minimal assist means only enough to ease some of the physical strain the rider must output to propel the bike at or near more typical unassisted cycling speed. Such assist usually plays no role in increasing the bike's top speed, being brought into play mostly when facing challenging terrain (steep uphill grades) or weather conditions (strong headwinds). Assist may remain completely disengaged for large segments of any given ride.