Cassette Sprockets lightweight specification
Features:
- Same gear thickness and spacing with CS-M9100-12
- -60 g compared to CS-M9100-12
- -10~20 g weight reduction
- Less chain slap
- Better chain retention and ground clearance
Benefits:
- Identical to 10-51T 12-speed cassette sprocket without the last cog
- Allows shorter rear derailleur cage and chain (-3 or 4 links)




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