Keeping the chain speed high helps. An 8 speed setup works better as sprockets etc are thicker. Try and use a cassette that is pinned or screwed together so you don't strip the hub splines. Also try not to load up the smaller cogs on the cassette as the chain will likely skip
Bike is a little rough as its my own hack bike
Not super fast but a bit of fun when all the other bikes are dismantelled.
Can stoppy it on front wheel from 50kmh to a standstill
4 gears from 20kmh to 55kmh
Specialized Supercross SX
Carbon fibre/Kevlar battery housing cover
BBSHD
14s5p with 30q cells
Couple of poor ol gassers in the background, Funny thing is I seem to enjoy riding the electric bikes now. Especially the freedom of riding almost anywhere and any way I want to ride them.