New answers tagged

0

Chainring replacement is pretty easy. It's easier if you take the crank out of the bike but you may be able to get the rings over the spider and crank arm without removing the crank. You can find instruction videos for pretty much every bike wrenching task. Here is one for chainrings.Note you will need a special chainring bolt tool to fit in the long thin ...


2

I bought a Dura-Ace chain ring thinking mine was worn. I was very surprised to find that the new one looked a lot like the used one. If you want to be sure ask a dealer to allow you to photograph a new large ring so you can compare them. Many modern gears are not cut in perfect arcs. This is to improve shifting performance not to increase durability. As far ...


2

The idea is that chain force causes wear on the edge of the upcurve of the U-shaped gap between each gear tooth, eventually eroding the tooth profile so much that it becomes V or shark-tooth shaped in extreme cases (instead of flat-topped). The gear gap where the chain roller sits is then much wider than the roller itself, and the gear tooth is much ...


0

The proper height for the front derailleur brings it to between 1 & 3 mm above the largest chainring. Perhaps of more importance in eliminating chainrub is paying particular attention to parallelism of the outer plane of the outer chainwheel and the outer cage plate. Place the long side of a hex wrench flat along outer aspect of the chainwheel (at the ...


1

It makes sense if it makes sense for you. As you use the same rear cassette/freehweel, you'll need to stick to using same 6-speed chains as before. I assume your current setup has a triple front chainring. If there are no issues with exclusively using the middle front chainring with all 6 rear cogs, neither from the drivetrain (no rub/noise/ chain jumping ...


1

I have a 38/48T crank setup and 11-30T cassette on my custom-built Surly Long Haul Trucker. Originally the 38/48T crank set was a triple (28/38/48T), but I removed the smallest chainring, not foreseeing any use for it, and adjusted the front derailleur to not drop the chain from the 38T chainring to the removed chainring. Most of the time, I use the 48T ...


5

You can remove the inner chainring without compromising the strength of the crank. However, this will mean you will have to 'cross-chain' from the outer large ring to innermost largest rear sprockets to obtain lower gear ratios. Doing this accelerates wear on the chain, sprockets and chainrings. Small chainrings and bolts are not expensive. Installing might ...


Top 50 recent answers are included