

Bontrager Rhythm Comp KnockBlock Stem (70mm)
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A reliable 31.8 mm aluminium MTB stem available in multiple lengths to fit your bike.
31.8 mm of durable control
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
- Available in a wide range of sizes for today's mountain rider
- See Service Parts for other Knock Block parts
- Approved for carbon bars and steerer tubes
Shipping
We aim to have each order fulfilled and shipped within 3-5 working days after your order being paid.
Link to your shipping policy.
Delivery
Shop online at biket and choose between 2 convenient delivery options.
Click and collect your orders in store.
Door-to-door courier countrywide.
Refunds
Please note we do not offer straight refunds, these are issued as store credits only.
WHO ARE WE
Bike it is a Trek bicycle store based in Hillcrest, KZN. We offer a range of products from Trek bikes, Bontrager apparel, and a full service centre. Looking for something you can't find on the online store, drop us a message and we will assist.