700C GRAVEL Carbon Wheelsets Disc Brake 36T Ratchet Hub Cyclocross Tubeless Wheels Center-Lock Hub Rim Pillar 2015 Spoke. Tubeless Ready. HUB: RATCHET SYSTEM HUB. Specially designed for Gravel. FRONT HUB:Aluminum, Aluminium flange,36T Ratchet SYSTEM.
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