Chain Tensioner

[2door]

Just a little suggestion to those with coaster brakes planning on using a pedal side chain tensioner. You'll want the tensioner on the top chain run. When braking all of the force is applied to the bottom of the chain. That way you won't have to build such a beefy tensioner bracket. Most of us don't pedal that often and a lighter bracket will suffice for it but when braking you don't want to run the risk of a critical component failing.

Tom

[Racko]

Originally Posted by 2door

Just a little suggestion to those with coaster brakes planning on using a pedal side chain tensioner. You'll want the tensioner on the top chain run. When braking all of the force is applied to the bottom of the chain. That way you won't have to build such a beefy tensioner bracket. Most of us don't pedal that often and a lighter bracket will suffice for it but when braking you don't want to run the risk of a critical component failing.

Tom

Tom, do you mean the stock chain tensioner? I worry about mine because its fairly far back and and the roller is elevated quite a bit. It makes me nervous that it'll go into the wheel. For the record I have a coaster brake

[2door]

No, Racko. I'm saying for those who want to do away with the engine side tensioner and add a pedal side tensioner. If they install a tensioner on the pedal side it needs to be on the upper chain run, not the lower. This will give you maximum force applied to the coaster brake without relying on the strength of a tensioner bracket/sprocket.

Tom

[Powerstroke816]

I just drilled a hole straight through the frame and stock one and just put a bolt through it and it stays in place.

[Mr. Minecraft]

Originally Posted by 2door

No, Racko. I'm saying for those who want to do away with the engine side tensioner and add a pedal side tensioner. If they install a tensioner on the pedal side it needs to be on the upper chain run, not the lower. This will give you maximum force applied to the coaster brake without relying on the strength of a tensioner bracket/sprocket.

Tom

This is the best thing to do if you cant get the perfect tension on both the engine chain and pedal chain. I need to remember this for future builds, thanks 2Door

[Racko]

Oh I gotcha! Thanks for the advice!

[Kioshk]

Originally Posted by Powerstroke816

I just drilled a hole straight through the frame and stock one and just put a bolt through it and it stays in place.

I see you have a Genesis Two Nine. The chainstays on this frame are rectangular, and I found it a perfect compliment to the stock-idler. It naturally stays vertical without slip.

[Cuereus]

@Racko if your tensioner is far back and the roller is sitting high you may want to look at taking out a link or two from your chain