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Shimano CS-R9100 Dura-Ace 11sp Cassettes
•CFRP & Alloy spider arm, 5 titanium sprockets
•Wider gear combination: 11-28T/12-28T/11-30T
•Closer gear combination: 11-25T/12-25T
•Cassette Spacing: Shimano 11
•Cassette Body Type: Shimano 11 Road
•Chain Compatibility: Shimano 11
•Weight: 175g (11-25t)
In 1971, a group of climbers, skiers, and outdoor enthusiasts established/founded Oregon Mountain Community (OMCgear) in Portland, Oregon.
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