Tag Info

New answers tagged

0

I have had this happen due to a worn rear derailleur spring. the rear derailleur isn't able to take up the slack fast enough. also check your chain line, bent rear derailleur hanger, front derailleur cage alignment. see if you can fit a chain catcher on your bike.


0

TA makes a 38t 110 bcd chainring. For whatever reason, it's generally easier to find odd size parts on the European Web sites. Wiggle is generally a good source. http://www.wiggle.com/ta-110-pcd-zephyr-mtb-middle-chainring/ Vuelta chainrings are generally more easily available in the USA, but aren't as nice as the TA ones. ...


1

You cannot replace Biopace unless you find some antiques. Biopace ended 20 years ago. Other chainrings are all compatible if the BCD is correct. The only issue is the ramps or pins that are meant to improve shifting performance. The manufacturer will always tell you to match everything up exactly but that is their sales pitch. Realistically having something ...


0

Unfortunately, Biopace components haven't been made for years (and other non-round chainrings aren't the same (e.g. Sugino Cycloid, Osymmetric)) and they've become somewhat rare. However, you can sometimes find them on eBay (listing claims Biopace, but theres no picture). Some people have stuck normal chainrings on a biopace crankset though (just need to ...


5

Cogs and chains "wear together" (regardless of whether they are front rings or rear sprockets). The old chain does not slip on the ring, because the old chain's rollers are worn down. They have an overall smaller diameter than the rollers of a new chain, and also a different shape: new rollers are cylinders, but worn ones look like small pulleys, they have ...


2

Yes a new chain can skip in either an old chain ring or old cassette. The length between chain lengths needs to match. So the old chain matched up to the old ring. The new chain does not match up with the old chain ring. I suspect the middle chain ring looks worn. If so for sure time to replace it. What do I need to know to buy new chainrings for ...


6

I expect that after 10,000 km your chainring also needs to be replaced (frankly, I find it astonishing that you made it that far without replacing anything else. That's amazing.). Am I correct in guessing that you spend most of your time in your middle chainring? If so, it will be significantly more worn than your large or small rings, which would explain ...


2

Sounds like it could be the tension on the cable. If its the original then replace it. If its new then look at reindexing the gears? Have a look on Sheldon Brown for a much more comprehensive run down of what it might be. If all else fails it could be that its got rotated or slipped at some point. Just loosen the screw holding it to the frame and lift it up ...


1

There's little difference noticeable but the chainrings will make a big difference as some cheap ones will flex a surprising amount


-1

Cassettes are harder to measure. For example they adjust spacing for IG (Interactive Glide). Chain is something you can easily measure. And it is the cheapest and easiest component of the drive train to replace. A stretched chain will increase the wear on cassette and chain ring. Measure chain Replace chain when stretched For sure replace cassette ...



Top 50 recent answers are included