Lightweight BMX front hub for 10mm dropouts. 15mm 7075 aluminium inner axle has a female system with hollow Cr-Mo 3/8” bolts (for 17mm wrench or 8mm Allen key). Hub body made of 6061 aluminium. Both push-in cones made of 7075 aluminium. Two oversized high quality sealed bearings for increased strength. For grinding it is the best to use optional solid bolts.