New Shimano Deore XT SGS RD-M771 MTB Rear Derailleur. Long arm takes a 34T cog. New In Box, with Shimano Service Instructions. Clean, no rust, strong springs, straight, tight, mint cosmetics and perfect mechanical condition. For a triple crank and 10-speed systems. 236 grams/8.3oz. Complete and ready to use for index or friction shifting. Made in Japan quality from 2013. RD742.
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