Run your favorite 31.8mm clamping diameter handlebar on a bike with Knock Block with the Rhythm Comp 31.8. It adds Knock Block compatibility to a durable stem with multiple lengths to let you fine-tune the fit to your ride.
Product details
Get 31.8mm handlebar compatibility with your Knock Block system
Also compatible with standard headsets and spacers
Knock Block system protects frame from impacts by fork and handlebars by eliminating over-rotation of bars
Available in a wide range of sizes for today's mountain rider
See Service Parts for other Knock Block parts
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