OK folks, I've got a question...
I have just set my bike up SS. I've got a new chainring, a new cog and spacers on the back, a new chain, and a spring mounted tensioner (one that pushes clockwise, not anti-clockwise).
When I push down hard on the pedals (starting from stationary, climbing, etc) I get a horrible jolting sensation, accompanied by a clunk, and a weird squeak. This happens with every pedal revolution.
Why?
All bolts are tight and the chainline is almost perfectly straight. The BB is old. The freehub is a couple of years old and has a tiny amount of side-to-side play. But I didn't have this problem last week when I had gears and everything on the same BB and hub. The chain is possibly a touch too long, which because of the tensioner means the chain is only wrapping around the rear cog from the 8 o clock to 12 o clock position.
My thoughts are either the chain is skipping because I don't have enough of it wrapping round the chain, or I'm getting the jolting because the pawls in the freehub are skipping. I can't see how the BB or pedals could be causing the jolting.
All thoughts are welcome because it is doing my head in!
Cheers.
I have just set my bike up SS. I've got a new chainring, a new cog and spacers on the back, a new chain, and a spring mounted tensioner (one that pushes clockwise, not anti-clockwise).
When I push down hard on the pedals (starting from stationary, climbing, etc) I get a horrible jolting sensation, accompanied by a clunk, and a weird squeak. This happens with every pedal revolution.
Why?
All bolts are tight and the chainline is almost perfectly straight. The BB is old. The freehub is a couple of years old and has a tiny amount of side-to-side play. But I didn't have this problem last week when I had gears and everything on the same BB and hub. The chain is possibly a touch too long, which because of the tensioner means the chain is only wrapping around the rear cog from the 8 o clock to 12 o clock position.
My thoughts are either the chain is skipping because I don't have enough of it wrapping round the chain, or I'm getting the jolting because the pawls in the freehub are skipping. I can't see how the BB or pedals could be causing the jolting.
All thoughts are welcome because it is doing my head in!
Cheers.
more pics!!
