Vibration in the pedals

Watcha, Just bought my first fixie (I feel a bit bad, but after 2 botched conversions and a left over voucher at my LBS, I thought why not just get one ready made...), a Charge Plug. Liking the bike a lot at the moment and only a few early moments of terror when I forgot and tried to freewheel...

But, not sure if this is a fixed thing or a bad setup but at certain times (mainly when I'm putting a bit of effort in). I get a bit of vibration on the pedals? Any idea what this might be? If its summit simple then I can sort if, if not then I'll let the guys at the shop take a gander...

E.M.

vibration?

not ideal.

possible causes:

chain too loose/too tight/bad chainline/loose chainring bolts/loose pedals/pedal bearings/bottom bracket.

I'm kind of hoping a brand new bike won't have bearing trouble. What kinf of symptoms should I be on the look out for on chain tension (too lose / tight?)

My money's on a tight chain. Does it still do it if you lift the back wheel off the floor and slowly rotate the pedals? There should be a bit of play in the chain, but not so much it can derail.

Seconded.

Lift the back wheel and turn the cranks slowly.

DO NOT TRAP YER PINKIES TWIXT CHAIN AND CHAINRING AND/OR SPROCKET

Check the chain tension at various points. Most likely it won't be even.

You'll need a tiny bit of play (couple of mil up and down) at the tightest point.

Vibrating pedals eh? I'm sure there's a market for that..

Where do you stick yer SPuDs, Mr Hippy?

Do tell.

Or maybe not...

Maybe you could use eggbeaters for the "mud" clearance?

back on the point of this, I'll take a shufti at it tomorrow. On the play front, are you saying that along the chain line it should be be lose enough to allow a couple of mils movement at the midpoint between crank and wheel?

Opinions vary, but pretty much.

Depends where you draw the line between "play" and "movement".

The tightest chain will still move, but a touch of tension-free play is entirely different.

Tbh, if yer velocipede is new just run it for a week or two and the chain will ease off anyway.

kowalski Where do you stick yer SPuDs, Mr Hippy?
Do tell.
Or maybe not...

Didn't say I was the market.. just reading this forum makes it obvious there's a load of deviants out there.. :P

Deviant is only a relative term, Mr H.

kowalski Deviant is only a relative term, Mr H.

said as he cracks his chain-whip

I can loosen your ring with my whip, too.

I swapped my 15T for my 16T so had the whip out tonight.

Mmmm... teeth.

Who ya gonna bite tonite, o hipster...