Crampons: Whether on flat or inclined surfaces

Part Number: 1000400

Larger 13t pulleys allow for smooth operation

compresses like a soft flask

FLEX ZONES AT THE KNUCKLES

Knock Block Headset Lockring Spacer waterproof matches Crampons: Whether on flat orTrek 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