Derailleur compatibility?
05-06-12 | 10:51 AM
#1
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Derailleur compatibility?
I have a road bike with a triple crankset with 30,42,52 chainrings. I have an 8-speed cassette with 12-25 cogs. I have a Sora long-cage rear derailleur and Sora 8-speed brifters. I need a new rear derailleur. Other than getting a new Sora, which rear derailleurs are compatible with my setup? Is it correct to say that I can buy any brand 9-speed rear derailleur as long as I never use the largest chainring and largest rear cog at the same time?
Last edited by starving; 05-06-12 at 11:00 AM.
05-06-12 | 11:14 AM
#2
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From: Somewhere Between The Beginning And The End
You Cannot buy any brand. You need to match the pull ratio of the Shimano so you need a Shimano RD. Some others will work but no sense in getting into that right now. You will need a long cage for it's chain wrap capabilities.
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