Ceramic Hybrid Cartridge Bearing chain retention parts the 321 disc turns conventional

the 321 disc turns conventional design on its head

The Pathfinder Sport delivers versatility not just for adventure-laden rides but as balanced active tire too

Heat treated chromoly 12-spline spindle to make sure it can go the distance with even the most demanding riders

but we also took the tread design of the Fast Trak a step further by manipulating each knob with Finite Element Analysis

Ceramic Hybrid Cartridge Bearing chain retention parts the 321 disc turns conventionalCeramic Hybrid bearings feature ABEC 5 tolerances and premium features such as LLB seals, Graphite Nylon retainers, Silicon Nitride Grade 5 balls, and cryogenically treated steel races. ABEC 5 precision cartridge bearing Grade 5 Si3N4 Silicon Nitride balls 52100 high carbon Chromium alloy races Races receive 3 cryogenic treatments "LLB" type 2 lip low contact Nitrile Butadiene rubber labyrinth seals Nylon graphite retainer Realube Special Ceramic