Bike Forums - View Single Post - Rear derailleur too stretched out?

05-30-21, 12:30 PM

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Litespud

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Quote:

Originally Posted by pennpaul

I'm swapping in a bigger 9-speed rear cassette on my road bike going from 11-28 to 11-36. I have a 53/39 in the front. I currently have a short cage Ultegra RD and also bought a longer cage Sora RD and new chain.

However, the new cassette came with a cheapo road link which I decided to give a try. It seems to work without having to change the RD or lengthen the chain. Now I'm thinking is it even necessary to swap RDs or am I risking disaster? The Ultegra RD should not work according to its specs, but it does.

I'm not going to try big-big, but big and half-way on the cassette is still OK.

all the road link (I’m assuming an extended hanger) does is give you clearance for the larger sprockets - it does not address the chain wrap issue, and your short cage RD isn’t up to the task. You need a longer cage RD.

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