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A reliable 31.8 mm aluminium MTB stem available in multiple lengths to fit your bike.
Run your favourite 31.8 mm 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 31.8 mm handlebar compatibility with your Knock Block system
- Also compatible with standard headsets and spacers
- The Knock Block system protects the frame from impacts by fork and handlebars by eliminating over-rotation of bars
- See Service Parts for other Knock Block parts
- Approved for carbon bars and steerer tubes
- CYCLING STYLE
- MTB
- MATERIAL
- ALUMINIUM
- TUBE DIAMETER
- 1" 1/8
- CENTER DIAMETER
- 31.8mm
- CATEGORY
- STEMS
- Season
- 2025
33153720318BLK
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