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Derallieur capacity

Bicycles Asked on June 23, 2021

I was jus looking at options for when I have to replace my cassette, A shimano Sora HG50 9 Speed casstte, there is option for a 12-27 or a 11-34, the 11-34 will give me more range but I am near to 100% sure that I have a short cage derailleur so I ask if this 11-34 will fit or will it prove to be too much for it and if so would a derailleur hanger extender solve this problem?
For context, I live in the surrey hills and climb quite a few steep hills on each ride and my nearest is maxes out at 25%, a good example of where I would like to spin an easier gear.
Thanks

One Answer

34 is likely too much. Nowadays short-cage Shimano RDs tend to allow 28 and 32 could somehow work, as the specs are very conservative, but 34 is likely too much. The extender should work, but the shifting will not be that precise.

Answered by Vladimir F on June 23, 2021

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