coaster brakes help?

[13b]

i just bought another bike (after wrecking the first one) to put a motor on. it's a really old fixed gear with coaster brakes. what do i need to make the coaster brakes work with the rear sprocket?

i also have a few more questions:

what do i need to do in order to use a stronger chain?

can rear sprockets be purchased to affect the gearing? what size would be suitable for a 26" cruiser?

are those sprockets compatible with a stronger chain?

really more than anything i just need a laundry list of things i need to make this work.

[Cabinfever1977]

you take the coaster brake off,mount the sprocket,then put coaster brake on,thats it.
you can use a stronger chain right now with the stock sprockets.
you can buy diffrent size rear sprockets,it will effect you top speed and acceleration and torque. i use the 44t sprocket and it works good. and you can use a stronger chain on the stock sprocket.

[rockvoice]

actually, you need to grind down the dust cover for the bearing on the coaster arm side. trim it so its just a hair inside the hub instead of having the crown around the outside of hub.

if you just take the arm off and install the sprocket the wheel will not spin.

[Finfan]

You'll probably have to mod the dust cap so check out this thread: http://motorbicycling.com/f30/coaste...-mod-1841.html

You'll also have to bend the brake arm a bit. There are instructions for that on the Spooky Tooth site.

I use #41 Roller chain which is plenty strong, although #415 chain will also work. The 44 tooth sprocket works fine for me on a 26" cruiser. The lower the tooth count the lower the torque and the higher the top end speed.

Good Luck!

[Cabinfever1977]

o yeah i forgot to mention i took off my dust cap to mount my sprocket,but you will probally want to just modify your dust cap and put it back on.