Large - 21

and this one will have the kids at school and even the dads at the pump track thinking is sick

Retention System: Dial-type retention system to dial in the fit

Material Details:• 4-way stretch provides freedom of movement and superior comfort• Hydrolix moisture management system helps keep you cool

Standard 6-bolt hub mounting

Enduro CXD 6902 15mm x 28mm x 7mm Hub Bearing - 15mm - 28mm - 7mm - ABEC-5 Ceramic Radial Bearing Heavy/Bulky Large - 21CXD 6902 LLB XD 15 Ceramic Hybrid, ABEC 5, Radial Bearing (CN clearance) 15 x 28 x 7mm The ultimate upgrade An Enduro Bearings exclusive, our XD 15 Ceramic Hybrid bearings combine corrosion proof, cryogenically treated nitrogen steel races with Silicon Nitride Grade 3 ceramic balls in a proprietary process that results in the ultimate high performance bearing setup. The deep groove design raceways allow for maximum sized Grade 3 Silicon Nitride