Which Shimano (10s comp.) road rear derailleur has the highest spring tension?

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Permalink Reply by Chris Mayhew on March 21, 2016 at 4:15pm

Are you running single or double ring? If single any Shimano rear derailleur will fit a 32t rear cassette.

If you cut the chain to the right length*, have an adequate chain keeper** and good dismount technique you'll be fine with any derailleur. I've used a wide variety over the years (with a 28t) with no problems. They do all tend to wear out after maybe 3-4 years.

*You'll want it as short as possible in the 32t. No more links than absolutely necessary.

** I've used a few systems but for the money (and performance) you can't beat a BBG bash guard and N Gear Jump Stop keeper up front. You can Tom Hopper it for extra security if you like. http://cdn.mos.bikeradar.imdserve.com/images/news/2009/12/15/126086...

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Permalink Reply by Jeffrey Borisch on April 2, 2016 at 6:39pm

Hi Erik,

I used one of these a couple years ago and it worked great even in the mud pits at John Bryan. http://gevenalle.com/product/burd-rear-derailleur/ 

I've run it with a single ring and a 11-34 in the back.  I never pushed its capacity limits while using a double though. On paper a 11-32 with a 44-38 might work. You'd be getting a low tension chain when you get close to the small-small combo though.

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