High, large flange (LF) design with solid, chromed steel axle and flanged axle nuts
Borozon treated races with stainless steel ball bearings
Rear: (SS) single-sided threading or (FF) flip-flop threading (includes 1 lockring)
Nutted axle
313g
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.