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  • Bontrager Rhythm Comp Knock Block Stem-No Packaging
Bontrager Rhythm Comp Knock Block Stem-No Packaging
Bontrager Rhythm Comp Knock Block Stem-No Packaging

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Bontrager Rhythm Comp Knock Block Stem-No Packaging

Model W565235

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

Comp. Value Sale price

A reliable 31.8mm aluminum MTB stem available in multiple lengths to fit your bike.

Color / Black
Select a color
Rise x length

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Pricing details

Retailer price

Retailer pricing applies when you purchase goods online that the shop has in stock today. Order is subject to retailer acceptance.

Comp. Value

Our “Comparable Value” (Comp. Value) prices are based on the prices charged by Trek or other retailers, in-store or online, for the same or similar items. In most cases, this is a price at which Trek has offered the item for sale, and also the MSRP we provide to third-party resellers based on the prices of competing items in the market.

In-store pickup
Direct-to-home shipping

31.8mm of durable control

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

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

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