harmonist said:
Hi all,
Just starting on the install for my new Edge hub motor and have some first initial questions.
As you can see in this pic the rear brake caliper mechanism is rubbing against the motor, does that basically mean I can't have a rear disc brake and can only use regen? should I just buy a stealth style frame instead maybe? thats my long term plan.
1.jpg
I'ver never installed a new freewheel before, is there supposed to be an end piece on here that will tighten up against the frame?
2.jpg
Cheers!
Lots of issues here.
First off, the axle is not deep enough in the drop outs. You need to take a round file and file them deep enough that the "tab" of the "torque washer"goes down about flush w/ the drop-out opening. Not that we trust that "torque washer" to keep the axle from spinning in the drop-outs, we don't(more on that in a moment).
What you need to do is put that torque washer on the inside to move the hub housing slightly to the inside. To bring the disc back out to the caliper, get disc spacer(s);
http://www.ebikes.ca/diskspacer.html
That is just a single spacer, but the torque washer is probably the same thickness(measure to ck.), so it should work. There are also "kits" avail. w/ various thickness shims for more adjustability.
You also need two torque arms, one on each side for regen. Don't even try it out w/out them or you will be sorry;
http://www.ebikes.ca/shop/electric-bicycle-parts/torque-arms.html
Yeah, that is what a free wheel looks like. Basicly, you will need to add flat washers over the axle til they extend just past the free whl. edge so it won't rub on the inside of the drop-out.
Adding washers on the inside of both sides may require "spreading" the chain stay slightly. It's NBD and usually it can be done w/ your hands. If not, some careful prying w/ a flat-bladed screwdiver should do it. Moving the hub over may or may not move the tire/whl. off center-line. A slight amount may not effect the tracking adversely, but if you can see that it's too far to one side, you will need to move the rim by loosening the spokes and re-centerening it.
Lastly (for this element of your build), that looks to be a free whl. w/ a 13 T sm. gear. If you want to be able to pedal along at speeds above 15 mph, you need a DNP free whl. w/ an 11T sm. gear;
http://www.ebikes.ca/shop/electric-bicycle-parts/freewheels.html?SID=2202751269dcf8fa7d9226d2e39acc9e
If I were you, I would show us(in pic.s) the completed whl. install and any other elements of the build that you are not sure they are 100% correct. It can save you some money and heart-ache.