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Bike storesComponentsChains & Chain Management

Generic · Chain Guides & Catchers

Alloy Chain Guide with Plastic Upper Guard 34.9/31.8 mm, Black

A clamp-on chain guide to help keep the chain on a single ring.

$39.99

Only 1 left · Ready to pick up from Ashburton Cycles

Ashburton CyclesClosed · Opens 9 am · 277 High Street AshburtonVisit store
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  • Buyer protection. Your payment is held until you confirm it arrived, or for up to 7 days.
  • Returns. Covered by the store's return policy.
34.9 mm, adapter to 31.8 mm
Clamp
Plastic upper guard
Guard
1x, 9, 10 or 11-speed
Drivetrain
Black
Finish

Overview

Riders running one chainring who want extra chain retention from a simple clamp-on guide.

This is a clamp-on chain guide for a single chainring, made for 1x 9, 10 and 11-speed drivetrains. A plastic upper guard sits above the chain to help keep it on the ring when the ground gets rough.

The hinged alloy clamp is 34.9 mm across and comes with an adapter down to 31.8 mm, so it suits either size of tube. It is finished in black.

Plastic upper guard

Sits above the chain to help keep it on the ring on rough ground.

Hinged alloy clamp

A 6061-T6 aluminium alloy clamp that fits around the tube.

34.9 mm with a 31.8 mm adapter

Covers both common tube sizes.

Made for 1x

Suits single chainring drivetrains with 9, 10 or 11 speeds.

Ask about this product

Specifications

Chain guide

Type
Chain guide for a single chainring
Clamp
Hinged alloy clamp (6061-T6 aluminium alloy)
Clamp diameter
34.9 mm
Adapter
Adapter to 31.8 mm
Guard
Plastic upper guard
Finish
Black
Suits
1x 9, 10 and 11-speed drivetrains

Who it's for

Great for

  • Single chainring bikes running 9, 10 or 11 speeds
  • Frames with a 34.9 mm tube, or a 31.8 mm tube using the adapter

Maybe not for

  • Bikes with two or three chainrings
  • Tubes of other sizes, such as 28.6 mm

Clamp diameter is 34.9 mm, and the adapter takes it down to 31.8 mm. Measure the tube before you fit it.

Worth knowing

Set the guard so the chain runs free

Fit the clamp to the tube, then set the guard so the chain passes through it without rubbing on either side. Turn the cranks by hand through several full turns and shift through the gears to check it stays clear, then tighten everything firmly.

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