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Shimano Changers Worn - Replace or Rebuild?

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Shimano Changers Worn - Replace or Rebuild?

Old 02-25-21, 07:17 PM
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Vintage Raleigh
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Shimano Changers Worn - Replace or Rebuild?






Hello all, attached are images of my brothers bike. The RHS changing is sluggish and now won't go into the high gear. Before I venture further, cassette and chain will be replaced, but are the changers servicable or do you replace the whole unit? Cheers
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Old 02-25-21, 10:09 PM
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nlerner
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I’d start with a thorough cleaning of your whole drivetrain and a good flush of those brifters.
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Old 02-25-21, 10:20 PM
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The imaged lever is a Microshift
make sure they are compatible with the ultegra derailleurs and the cassette.

this is on the near border of C&V, almost too young.
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Old 02-25-21, 11:20 PM
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Everything looks well used. The derailleurs and shifters are probably not the issue. Since you're replacing the cassette and chain, I would also replace the cables and perhaps the cable housing. If it were my bike I'd replace the chainrings and the rear derailleur pullies.
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Old 02-25-21, 11:36 PM
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the large ring has some shark teeth...ie. really worn. replace that. and, if you do that, you'll need to replace the smaller ring, the chain, and cassette...if you do things "proper" like.
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Old 02-26-21, 12:33 AM
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Originally Posted by thook View Post
the large ring has some shark teeth...ie. really worn. replace that. and, if you do that, you'll need to replace the smaller ring, the chain, and cassette...if you do things "proper" like.
small ring looks like sharp teeth also.........
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Old 02-26-21, 12:48 AM
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thook
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Originally Posted by klasse View Post
small ring looks like sharp teeth also.........
it's not as bad, but the wear is certainly there
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Old 02-26-21, 03:20 AM
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Thankyou and greetings gentleman, for your prompt responses. Looking somewhat like a grifter rabbit hole. To clean or not that is the question 50/50. Thanks for picking up thee aftermarket jobbies. And please move if in the wrong section kind sir
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Old 02-26-21, 04:52 AM
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Microsoft R9 is Shimano 9 compatible for sure with "fresh" cable and housing. Ultegra mechs can last a long time with the occasional clean.
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Old 02-26-21, 05:58 AM
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Step 1: Thorough cleaning of drivetrain and alignment of rear dropout hanger. Typically, that solves about 80% of indexed shifting woes.
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