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abrasion and cut resistance
Certified to EN 1078
anti-slip brake lever increases control on bumpy terrain
X-Small: 30
dairy free
Shimano Ultegra CS-R8101 12sp Cassette Choose:11-30T abrasion and cut resistanceThe uninterrupted shifting experience of the ULTEGRA R8100 12 speed cassette range lets you climb, sprint, or cruise without stopping to think about your next gear change. Larger driving cogs maximize drivetrain efficiency and create compatibility with both Shimano 11 and 12 speed FREEHUB bodies. HYPERGLIDE+ cassettes revolutionized off road shifting with its seamless shifts both up and down the gear range. Now it's time for the technology to change
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