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
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Get 31.8mm handlebar compatibility with your Knock Block system
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Also compatible with standard headsets and spacers
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Knock Block system protects frame from impacts by fork and handlebars by eliminating over-rotation of bars
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Available in a wide range of sizes for today's mountain rider
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See Service Parts for other Knock Block parts
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