Pay in 4 interest-free payments of $4.75 Learn more
Ships within 48 hours · Estimated delivery Jul 31 - Aug 5
Tools included
Swap orientation of spacers to match different brand crank/chainrings
Sleek grey finish for a stylish look
Powers derailleur by main e-system battery
Trek Knock Block Headset Top Cap Knock Block Top Cap Black Chain Guards & Bash Guards Tools includedHeadset Part Trek Top Cap Knock Block Premium 2018 Black Genuine replacement parts Trek proprietary headset parts. A wider top cap to cover the keyed recesses of Knock Block compatible stems and spacers. The M4 hex preload bolt allows for checking torque of the full cockpit without changing bits on the torque wrench. Key Features Do not use star nut on carbon steers Top cap has a 35. 5mm diameter Specifications Color Black Size Knock Block Top Cap
US$ 24.00
US$ 29.95
US$ 149.95
