Ok, so I've aquired a Trek FX 7.5 on the cycle2work scheme and in a bid to encourage me to cylce to work more (9 miles each way) I've been researching electric kits to do this bike justice.
This is what I've ordered:-
Tongxin 190rpm hub with disc mount.
Lyen mini monster controller.
Thumb throttle + cruise control from Lyen.
Torque arm and dropout washers from ebikesca.
I will be ordering one of the 36v15ah lipo shrink wrap batteries from BMS battery on pay day.
All in the above should weigh in at 5.5kg - nice and light weight and should give me 25miles range, easily enough for my commute without a charge at work.
First to arrive was the motor which I acquired via ebay. I then ordered some Halo DB black spokes and a Mavic A-319 rim to lace it into.
Spokes in place.
It's been years since I built a wheel (worked at a bike shop when I was 15yrs to 19yrs old).
3hrs later and I'm quite happy with that - proof of the pudding will be riding it though!
Cyclesheme voucher arrived Wednesday so finsihed work early and picked up this from the LBS:-
As you can see, I've already fitted the accessories
Lyen controller, thumb throttle and cruise control also arrived a while ago:-
Nice small controller. Need to have a think about where to mount it - thinking about making a base plate that will mount to the seat tube with the bottle mounts then mounting the controller to that.
Fitted the handlebar controls:-
The cruise control fitted like a dream with no need to reposition the other controls. I had to be creative with the thumb throttle. You'll note that it twists backwards now - actually seems to work quite well - do twist throttle twist backwards? Needed to fit a lower profile clamping bolt to the brake leaver to ensure the sti down change leaver cleared it.
Trial fitted the built up motor/wheel. The Treks drop outs measured at 9.4mm and the hub shaft at 9.9mm so 1/2 an hour filing the hub shaft and it now fits a treat. Also had to elongate the torque arm mounting hole to be able to get a bolt into the eyelet.
That's it for now until I get a battery and can start wiring it all up - good news is BMS battery are now listing the shrink wrap lipos again so back to original plan of 36v15ah battery - just wish payday would hurry up!