Very strong and stiff front hub without disc mount. For 3/8" dropouts. Hub body made of alu 6061. 14mm hollow alu 7075 inner axle with 10mm hollow female bolts. Bolts for 6mm allen key and 17mm wrench. Two large, highest quality Japanese sealed bearings. Including two pairs of small alu washers: 20mm (for susp. forks) and 25mm (for rigid forks).