Enduro Zero Ceramic Grade 3 6901 Sealed Cartridge Bearing 12 x 24 x 6mm MFPN=F60031 The rugged alloy construction is

The rugged alloy construction is weatherproof and strong enough to handle the abuse of an urban commute

2 Proprietary Plastic non drive side hub guards

The XM 1700 SPLINE wheels were designed to dominate the mountain

0mm 274mm J-bend Silver Box of 100

Enduro Zero Ceramic Grade 3 6901 Sealed Cartridge Bearing 12 x 24 x 6mm MFPN=F60031 The rugged alloy construction isEnduro Zero Ceramic Grade 3 6901 Sealed Cartridge Bearing 12 x 24 x 6mm. Zero Ceramic bearings are the ultimate race day weapon. Oversized Grade 3 balls roll on races which are ground to a mirror finish after receiving Magnetite and then Cryogenic treatments for hardness and longevity and slippery Silicone seals to produce minimum resistance. All measurements are in millimeters ABEC 5 precision cartridge bearing CERBEC USA Grade 3 Si3n4 Silicon