New SS, need help with a smal problem

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I converted a Schwinn World sport to a single speed using a set of Alex wheels from my 2006 Trek 1000.

I'm using the conversion kit from Nashbar.

I have the drivetrain lined up pretty well, and I've got the chain as tight as it will go with the tensioner. But when I push the pedals, the chain jumps.

Now it might go away when I change the front chain ring - right now there is a 52 on there, a little steep for me.

Any ideas?

Robbie

A couple of ideas/solutions:

1) Are you using a new chain? Dumb question I know, but this is the first usual suspect. If the chainline is correct, by simply moving the chainwheel to a lower size is not going to slove chain derailment although it may very well be a good idea for other reasons (mainly your knees tee hee). While on the subject of chains, with single speed I have found 8 speed chains work best (they are slightly wider).

2) I am not familar with the Nashbar single speed conversion kit. Assuming your using a chain tensioner, make sure that you are using the "push up" option rather than the "push down". The chain being "pushed up" at least for the Surly chain tensioner, gives much better chaing wrap over the rear freewheel verus the "push down" position.

Good luck.

VTW

I am indeed using a new chain, 7/8 speed.

I'll have to give that a try on the tensioner - I am looking at removing it all together though - I just have to cut out the drop outs a bit to give me some wiggle room.

Thanks!

Robbie