Shotgun Replacement Trek Knock Block Adapter - Trek Knock Block Adapter YGroup_7033477070893 where your fork lowers transmit

where your fork lowers transmit "trail chatter" from your wheel through to the spring and damper shafts and onward to your arms

breathable soft shell pants with a durable water repellent treatment to resist light moisture

Tubless: Tubeless taped and valved

Fully seam sealed construction

experiment with volume reducers

Shotgun Replacement Trek Knock Block Adapter - Trek Knock Block Adapter YGroup_7033477070893 where your fork lowers transmitIf your bike has a Trek Knock Block headset system, you will need this adaptor in order to fit your Shotgun Pro. Fitting the Shotgun Pro on a Trek bike with a Knock Block requires a minimum of 30mm clearance under your stem (from headset to the bottom of the stem). The Trek Knock Block adapter replaces one of your 10mm spacers, the Shotgun Pro spacer (provided with your Pro seat) replaces another of your 10mm spacers, one of your own 10mm spacers