Wolf Tooth Headset Upper Knock Block - 28.6 8mm Black MFPN=XTR9630 Rotating articulating clamps allow for

Rotating articulating clamps allow for secure installation onto virtually any bicycle in a wide range of positions

Charger 2 RC2 Damper option featuring independent high and low speed compression adjust

Cartridge Type Threaded Included Cartridge Yes

M5 (minus 5mm - Boost) is dished towards the frame for 52mm chainline for bikes with Boost spacing

}Jagwire Sport Organic Disc Brake Pads - For Shimano Deore XT M8020 Saint M810/M820 and Zee M640

Wolf Tooth Headset Upper Knock Block - 28.6 8mm Black MFPN=XTR9630 Rotating articulating clamps allow forWolf Tooth Headset Upper Knock Block 28. 6 8mm Black. Wolf Tooth Precision Headsets for Trek Knock Block are machined in the USA out of aircraft grade aluminum with superior sealing for protection against the elements. Available in a variety of colors to add some style to your bike. These upper headsets are for Trek frames with molded in internal bearing cups. Designed to work with Treks Knock Block system The top cap on these headsets have unique