chainrings fitting

[Alan M]

I get a creaking noise from my chainring when I power out of the saddle. I was advised to remove them and grease between rings and spider and on the fixing bolts. I noticed the lug on the outer 9big) ring and positioned it correctly in line with the crank but the inner ring has a small triangle positioned on its circumference and I am not sure if its positioning of it is critical. It seems pretty uniform otherwise. Any views?

[Ivor]

I think the arrow is supposed to point to the crank too.

[Tamar]

I never realised you were meant to line anything up when replacing chainrings, so I haven't, and so far it has worked OK.

[Andrew G]

I expect there is a little triangle on the big ring too which it should line up with, or else it probably lines up with the crank. There are little triangles on my cassettes which line up (although they can only go on the freehub body one way anyway) and they line the sprockets up so that the ramps on the teeth are in the right place to get the smoothest shifting.

[Alan M]

well - I could see it if there were ramps on the small ring but as far as I could see it was evenly machined around its entire circumference.

[Ivor]

It probably doesn't matter at all, I think only outer and middle rings are ramped. There was a "keying" arrow on the single ring I put onto my folder, I lined it up with the crank cos it just seemed a shame not to.

[Snoop Doug]

[quote="Alan M"]I get a creaking noise from my chainring when I power out of the saddle. I was advised to remove them and grease between rings and spider and on the fixing bolts. I noticed the lug on the outer 9big) ring and positioned it correctly in line with the crank but the inner ring has a small triangle positioned on its circumference and I am not sure if its positioning of it is critical. It seems pretty uniform otherwise. Any views?

[Marek]

Surely this thread should go in the 'Power' section. Watt whattage were you whacking when whizzing your whirring cranks?

Cheers

Marek....

[Alan M]

[quote]Surely this thread should go in the 'Power' section. Watt whattage were you whacking when whizzing your whirring cranks?

[Alan M]

It didn't work anyway - But at least I de-greased my chain rings properly!

[mrP(Boonen)VT]

Seems like they're not done up tight enough to me.

Guru P