Noticed my chain rubs on itself

forbez

Only the other night I got home from a ride and noticed that my chain was a little noisy, on inspection I noticed it appears to be rubbing on itself, and the rear deraileur appears to not be sitting right.
http://smg.photobucket.com/albums/v260/ ... edia_share


Any ideas what ttys problem is here? Thanks.

Newbie btw. Cheers

cooldad

Shorten the chain?
Are you in small/small?

forbez

Yeah I'm in 1st / lowest gear. You think the chains to long? Thanks for the quick response.

warpcow

Wait. You've got it on small front, small back? If so, that'll be your problem.

forbez

Has cycling changed that much in the years I haven't done it? Blimey, I take it that's something I shouldn't be doing then?

cooldad

Avoid extreme combinations - large chainring with 2 largest cogs, small chainring with 2 smallest, assuming you are running 3 on the front.

j96_2

It's because you in such a low gear, the rear mech is taking up too much slack and eventually can't take anymore due to its position, therefore the chain sags onto itself.

The Rookie

With the chain round large/large the lower side should be almost straight, if its not the chain is too long, also if they've gambled on the mech a little even with the right length chain you can end up with that condition in small/small (which you should never be in anyway!).

Simon

forbez

Hmm well thanks for that guys, I never imagined that I should use that combo of small / small cogs. What's the reason for that then? I dont think I'd be climbing half of the hills around here without that 1st gear.

Thanks for your responses.

It's a Giant Yukon FX2 that im using.

cooldad

Small/small doesn't give you a low gear. Small/large does. (F/R)

nicklouse

Forbez wrote:

Hmm well thanks for that guys, I never imagined that I should use that combo of small / small cogs. What's the reason for that then? I dont think I'd be climbing half of the hills around here without that 1st gear.

Thanks for your responses.

It's a Giant Yukon FX2 that im using.

have a read.

http://www.bikeradar.com/forum/viewtopic.php?t=12647117

forbez

cooldad wrote:

Small/small doesn't give you a low gear. Small/large does. (F/R)

Doh, I realized that last night! I'm a dimwit! Thanks for pointing out the obvious! I was just a little worried!

nicklouse wrote:

Forbez wrote:

Hmm well thanks for that guys, I never imagined that I should use that combo of small / small cogs. What's the reason for that then? I dont think I'd be climbing half of the hills around here without that 1st gear.

Thanks for your responses.

It's a Giant Yukon FX2 that im using.

have a read.

http://www.bikeradar.com/forum/viewtopic.php?t=12647117

I'll have a read of that now, thanks for your responses and courtesy, despite me being a complete plank, you have all been very polite!