Easy Derailleur Repair
- If shifting problems develop quickly, like during a ride, make sure your cassette is free of sticks, grass and mud, and that your back wheel is sitting squarely in ...
- Your chain jumped into the spokes? The hanger may be bent. ...
- Also common: bent links. Spin the crank backward to find the tight or damaged chain section. ...
- Diagnose wear issues by first cleaning the chain, ensuring the hanger is straight and the wheel is fully seated in the drops. Shift the gears. ...
- If stops are correctly tuned and the barrel adjuster won't clean up the shifting, check your cables. ...
- If steps 4 and 5 don't fix your shifting, check the chain and cassette for wear. Worn cassette teeth have a thin profile and hook slightly. ...
How to setup and adjust a rear derailleur?
Adjusting the rear derailleur. Step 1. Put the gear lever into top gear, turn the pedals and allow the chain to go onto the smallest cog on the cassette. If there is a cable adjuster on the gear ...
How do you assemble the rear derailleur?
What do I get with a more expensive derailleur?
- Weight. More expensive rear derailleurs will, typically, weigh less. ...
- Longevity. More expensive derailleurs often use harder wearing components and are built to closer tolerances, so will last longer than cheaper models.
- Finish. We still maintain that Shimano’s R9000-era Dura-Ace groupset produced some of the best-looking rear derailleurs of all time.
Do I need a new rear derailleur?
Yes, also only use Campagnolo rear derailleurs with Campagnolo cassettes and shifters. While some elements of a drivetrain may be cross-compatible between brands, when it comes to derailleurs and shifters, they are most often not. If you have a Shimano shifter, you need a Shimano derailleur, and likewise with other brands.
How to clean and lubricate a rear derailleur?
Maintain Your Rear Derailleur
- Shift to the big chainring and big cog, then loosen the rear derailleur's cable clamp.
- Set the inner limit--or how far the derailleur can travel toward the spokes. ...
- Set the outer limit-or how far the derailleur travels away from the spokes. ...
How much does it cost to fix a derailleur?
If you take your MTB into a local bike shop the average price to replace a rear derailleur is going to be $110. If you DIY replacing a derailleur will cost about $50 (plus your time) This price will depend a lot on the actual derailleur needed. Usually a bike shop will also take care of other problems.
How do I know if my derailleur is bad?
3:515:35Rear Derailleur - Advanced Troubleshooting - YouTubeYouTubeStart of suggested clipEnd of suggested clipAll derailleur is wear out at some point check this by pulling laterally on the lower Kage compareMoreAll derailleur is wear out at some point check this by pulling laterally on the lower Kage compare this movement with the new derailleur.
How do I know if I need a new derailleur?
If there's play, get a new one. Also, drip some Tri-Flow or something into all the pivots. If it's really dirty and sticky, it'll have a harder time with the shift you describe. If with clean, lubricated pivots the derailleur still won't move well, you probably need a new one.
How long should a derailleur last?
Derailleurs will last almost indefinitely. The jockey wheels will wear out in time (tens of thousands of km) but the rest of the mechanism shouldn't see significant wear. It could be that the spring will break at some point due to material fatigue, but that is also a relatively easy to replace part on most derailleurs.
How to replace derailleur on bike?
If you are replacing an existing derailleur on a bike, simply count the number of cogs on your cassette and you’re good to go. If your drivetrain’s speed is an unknown quantity, you can count the number of steps that your shifter runs through and add ‘one’ to determine the number of gears your drivetrain has.
What size derailleur do I need for a mountain bike?
In these circumstances, you will require a long cage derailleur. If you are running a 1x drivetrain with a regular-sized cassette (i.e. 11-36t or smaller) or some 2x mountain bike drivetrains with a similarly sized cassette, you may want to use a medium cage derailleur.
What is cable pull ratio?
As you stated in the article, cable pull ratio is " the amount that a derailleur moves for every millimetre of cable pulled through by the shifter". So its related only to the derailleur geometry, not the shifter.
How to figure out how many gears a bike has?
To work out how many ‘gears’ your bike has, count the number of sprockets on your cassette. Once you’ve settled on the brand, you must now determine the number of gears that your groupset has. If you are replacing an existing derailleur on a bike, simply count the number of cogs on your cassette and you’re good to go.
Is a SRAM Red rear derailleur backwards compatible?
10- and 11-speed SRAM road components are inter-compatible – meaning you could run a 10-speed SRAM Red rear derailleur with a pair of SRAM 22 shifters. 12-speed SRAM components are not backwards compatible with 11-speed. The exception is eTap batteries, which work with all 12-speed AXS and 11-speed components.
Do mountain bike groupsets have different pull ratios?
Ratios may also change as the number of gears changes, and there may even be pull ratio differences between different generations of the same gear model .
Can you mix and match drivetrain components?
As a general rule of thumb, it’s best not to mix and match drivetrain components from different brands. While things such as cranks, chains and cassettes are mostly inter-compatible between brands, generally speaking, shifters and derailleurs aren’t.
