Knock Block Headset Lockring Spacer Size:28.6 mm (1-1/8") Easily carries four pair of

Easily carries four pair of skis – up to 136 mm wide at the tip - or two snowboards

easy-wearing

Fast Action Wicking: Pulls moisture away from skin

when the light dips beneath the hills

Knock Block Headset Lockring Spacer Size:28.6 mm (1-1/8") Easily carries four pair ofTrek Knock Block Headset Lockring Spacer Genuine replacement parts Service and replacement parts specifically for Trek Knock Block Technology. Product details For locking steer tube to the headset bearing cover and frame chip Only for use with Trek Knock Block systems Specifications Model Trek Knock Block Lockring Spacer Steerer outer diameter 28. 6mm (1 1 8") Thickness 10mm