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Ships within 48 hours · Estimated delivery Aug 27 - Sep 1
Fully seam sealed construction
experiment with volume reducers
low profile and lots of traction pins
Tubless: Tubeless taped and valved
Shotgun Replacement Trek Knock Block Adapter - Trek Knock Block Adapter YGroup_7033477070893 Fully seam sealed constructionIf 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
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