A simplified knock block solution to blocking those knocks to your frame. No special stem or spacers or frame guard required.

Enhance your cycling experience with Trek Knock Block Headset Upper Assembly. Find the best gear at trekbikes.com and your local Trek retailer. Shop now!

Knock Block Headset Spacer - Wolf Tooth Headset Spacer Knock Block - 10mm, Black. Opens in a new window or tab. Brand New. $16.91. Buy It Now. Free delivery. Free returns. Sponsored. …

Trek developed Knock Block as an integrated frame protection system to prevent self-inflicted scuffs, dents, or cracks from spinning handlebars. Knock Block consists of a special stem and …

2016年5月26日 · Trek’s all-new Straight Shot frame design features Knock Block frame defense to optimize stiffness-to-weight ratio for a more responsive ride. Knock Block's headset …

2017年1月9日 · I'm using RaceFace ATLAS 35 Stems with RF Next R 35 Carbon bars in both, my TREK Procaliber 9.6 and Supercaliber 9.8 XT (recently purchased) and keeping Knob-Block …

Service and replacement parts specifically for Trek Knock Block technology. Enter your zip code to get detailed delivery estimates. Get your bike back on the trail with the headset parts you need.

Keep your cockpit clear of clutter with Blendr Pro Knock Block: the ultimate integration system for clean and easy computer installation that mounts directly to Knock Block headsets. Learn more

The Knock Block possesses realistic knocking action with a human-like variation in frequency and amplitude of knocks. Just knock on the Knock Block, or even the surface on which it's resting, …

The G4+ KnockBlock is an essential tool for tuning and can aid in the early detection of incorrect timing, lean air/fuel mixtures and mechanical issues. Features. Turn the volume control …