im officially putting an end to this project- the controller set fire today.
i had the three gears shifting under load with the half link chain nicely- i just off-throttled, shifted and throttled back on just as you would a motorbike and it was perfect. had it geared at 40 55 and 70 km/hr; the 40 gear was awesome for accelleration and the top gear was fast enough for fire-tracks. nothing was stripping, bending, cracking or snapping...then bam controller bursts into flames.
im over it, i cant keep throwing money at this thing. i could have just bought a pretty good second hand 250cc bike for what i've spent on it. ill part out the bike and sell any of it if anyone wants anything-
astro 3220 with tangent drive, steel running gear, 40:1 reduction $1200
CAv3- $100
4x16ah 6c Multistar lipo's, wired and in aluminium box, about 25 charge cycles- $300
feathermerchant 24v 69a power supply $150
turnigy mega 1344w 40a charger $100
freewheel trials cranks $80
Revox rear shock, 450lb spring, 9.5x3.5" stroke, re-valved $80
if anyone wants the frame i'll consider selling that also
wheels, forks and running gear not for sale (im gonna build up my old DH frame again and just ride that, at least it didnt break every ride).