Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Gold Labeled Size-27.5 x 2.50 An O-ring on the inside

An O-ring on the inside of the axle locks the Axle Handle Multi-Tool in place so it is secure while riding

Brake Type Disc Damping Charger 3

Diameter: 36-37mm installed diameter

and the housing firmly fastened to the ski pole

Industry Nine iRiX IS41/IS52 Headset : IS41/28.6 | IS52/40 Integrated Complete Gold Labeled Size-27.5 x 2.50 An O-ring on the insideTECH SPECS Primary Color Gold Headset Position Complete Material Aluminum Steerer Tube 1 1 8 1. 5 Headset Type Integrated SHIS Lower IS52 40 Lower Cup 52mm Bearing Grade Stainless Steel S. H. I. S. IS41 28. 6 IS52 40 Upper Cup 41mm Crown Race Diameter 40mm SHIS Upper IS41 28. 6