BOX Three Prime 9 Cassette - 9-Speed - 11-50t - Black For Carbon Rims This is a replacement 14mm

This is a replacement 14mm axle for BlackOps MX-2100 Micro-C sealed hub

this tire is offered in a narrower size for ultimate speed and efficiency

Extra wide spline interface prevents cog from deforming hub splines

tougher finish

BOX Three Prime 9 Cassette - 9-Speed - 11-50t - Black For Carbon Rims This is a replacement 14mmThe Box Three Prime 9 cassette delivers versatile performance for riders seeking wide gear range without complexity. Steel cogs are strategically pinned to lightweight alloy spiders, while weight reducing holes minimize rotational mass. Prime 9 technology packs 12 speed range into a 9 cog setup, cutting shift points and simplifying drivetrain maintenance. Fewer components mean less weight, greater durability, and easier upkeep. Compatible with