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Lower strength loss of transmission brings higher driving efficiency
000 CD/M²
Dura Ace BR-R9170
5 Large usually is better
it offers the perfect mix of output
Shimano Deore Shadow RD-M5100-SGS 1x11 Rear Derailleur Brushes Lower strength loss of transmissionThe Shimano Deore RD M5100 is a versatile derailleur option, compatible with 1x11 drivetrain options. The low profile design avoids damage from rocks and debris, so you can have peace of mind while out on the trails. Designed to pair with the Deore CS M5100 11 51t cassette. It can also be used with other wide range 11 speed cassettes. Larger 13t pulleys offer smooth operation, and will reduce wear and tear on the components. Shadow RD+ Technology