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04-01-13 | 08:40 PM

#30

Bob Dopolina

Mr. Dopolina

Joined: May 2007

Posts: 10,276

Likes: 185

From: Taiwan

Bikes: KUUPAS, Simpson VR

Quote:

Originally Posted by Gerry Hull

Xx derailleur I use has mid-length cage that is precisely same dimension as sram red rd it replaced.

But that is for a single front chainring not a 39/53 road crank. That means A LOT more chain wrap.

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