Aerozine XH80816C Road MTB Bicycle Internal External Bike Headset 1 1/8"-1.5" Bike Parts Proprietary design ensures smooth shifting

Proprietary design ensures smooth shifting and strength

The overall power savings of the OSPW System for Campagnolo Mechanical&EPS 11s rear derailleur reach 30%-60%

Internal grease sleeve

78grams / 2

Aerozine XH80816C Road MTB Bicycle Internal External Bike Headset 1 1/8"-1.5" Bike Parts Proprietary design ensures smooth shiftingAerozine XH80816C Road MTB Bicycle Internal External Bike Headset 1 1 8" 1. 5" S. H. I. S CODE : ZS 44 28. 6EC 44 40 Specification: Size: 1 1 8" 1. 5", 45 45 ACB , ZS 1 1 8 Upper ,EC 1. 5" Bottom Material: 100% CNC machined 6061T6 alloy cups w alloy top cap Bearing Sealed Angular Bearing Stack Height: 12+1. 5= 24. 5mm Weight: approx. 128g Notice: It's better to measure the SHIS of your frame before you buy.