Tagged Questions

1
vote
1answer
160 views

When Installing chainrings which are pinned, how should I orient the chain drop prevention pin?

I'm setting up a double crankset with a new front chainring which is ramped and pinned. How should I orient the outer front chainring with respect to the chain drop prevention pin? Should this line ...
4
votes
2answers
2k views

What are common causes of premature chainring wear?

My bike mechanic told me today that my front chainrings are starting to wear out and I should consider replacing it soon (with my next chain replacement). The cassette is still in good condition and ...
1
vote
1answer
293 views

Biopace chain rings and front deraileur rub

Turns out my front chain rings are biopace, after I thought they had disappeared! I've got a problem with the chain rubbing the front deraileur at a certain point every rotation. I only get this in ...
2
votes
2answers
889 views

Removing SRAM Red Chainrings

This is almost certainly very simply, but how do you undo the chainring bolts on the SRAM red chainset? I can fit a 5mm (or 8mm can't recall now) hex head into the black screws, but they just spin on ...
2
votes
1answer
4k views

Shimano Chainring Compatability

In my previous question we determined that I probably need new chainrings. I was/am planning on replacing the chainrings, and leaving the original crank. Now this bike is running Shimano 105 FC-5600 ...
4
votes
3answers
1k views

Bent Chainring causing chain to attempt changing gears

I was riding my road bike last night when something strange happened. I stopped at a stop sign. (I didn't have time to slow down so I was in my highest (fastest) gear. When I started I had to press ...
11
votes
6answers
6k views

Does this chainring need to be replaced?

Here is a closeup of my triple: All three rings are Shimano Ultegra and have never been changed. They probably have at least 12000+ km on them. I've been pretty good about changing the chain ...