Chain Rubbing The Frame

[shagadelic]

I just bought my first trials bike and i noticed that the chain is killing my frame.

Everything looks ok, the wheel is centered, the sprocket is aligned with the free wheel but i keeps touching there, and gives that annoying sound when riding.

I've tried to tighten the chain at its max but no hope, keeps touching. Is this normal or is anything missing to me?

By the way, its an onza ice.

Thanks

Edited July 5, 2010 by shagadelic

[trials owns]

try loosening your chain a little, it hopefully should lower the chain a bit.

Edited July 5, 2010 by trials owns

[Mark W]

When you pedal hard it'll make your chain bow up a bit and hit the frame anyway.

Maybe try flipping your rear sprocket over, or possibly run a shorter BB if possible?

[Ashley Sayers]

or use a file

[shagadelic]

I'm new to this kind of hubs, please confirm that the sprocket is mounted right.

Thanks

Edited July 5, 2010 by shagadelic

[Cahill Trials Kid]

  On 7/5/2010 at 10:12 AM, Onzaboymark said:

When you pedal hard it'll make your chain bow up a bit and hit the frame anyway.

Maybe try flipping your rear sprocket over, or possibly run a shorter BB if possible?

+1

Your sprocket is the right way round,

but it can be run the other way round as well,

[TomG]

Me and my friend used to have this problem, we slightened the chains a bit and it still happened a little but it didn't effect anything for us.

[shagadelic]

Can anyone tell me how do i remove the sprocket and if it need some special tool to do it.

Thanks for all the replys.

[trials owns]

here u go

http://www.tartybikes.co.uk/media.php?group=guides&id=1

[shagadelic]

Really nice video, thanks a lot.

I'll post here if turning the sprocket the other way round works.