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e*thirteen componentsGuidering 4 Bolt Chainring

Temporarily Out Of Stock

Item # ETR001L

Don't get too bummed. This item is on the way and will be available for purchase as soon as it rolls into the warehouse.

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Guidering 4 Bolt Chainring

Whether your current chainring is worn, bent, or has just seen better days or you're taking the plunge and setting up your mountain bike with a 1x drivetrain, the Guidering 4 Bolt Chainring from e*thirteen Components has you covered. The chainring features lightweight yet durable, 5-millimeter thick aluminum construction and the ubiquitous narrow/wide profiling for increased chain retention over bumpy trails.

e*thirteen spent many hours testing numerous tooth profiles to establish a shape that not only held the chain on better but also desired one that was long-wearing so the chain continues to stay in place even after some heavy duty use. It's fully compatible with 9, 10, and 11-speed drivetrains and it's highly recommended to pair with a clutch-style rear derailleur.

The Guidering 4 Bolt Chainring has a 104mm BCD and comes in the colors Black, Blue, and Red. The 30-tooth ring has a 47.5mm chainline and sizes 32 through 38-teeth have a flip-flop 49/50mm chainline.

  • A 1x chainring from e*thirteen
  • 5mm thick aluminum is built for durability
  • The narrow/wide profile keeps the chain in place
  • Works with any 104mm BCD crank
  • Compatible with 9, 10, and 11-speed drivetrains

Tech Specs
Number of Rings1
Teeth30, 32, 34, 36, 38t
Bolt Circle Diameter104mm
Connection4 bolts
Compatible Components10, 11-speed mountain drivtrains
Recommended Usemountain biking
Manufacturer Warranty5 years

Claimed Weight

Claimed weights are provided by the vendor.

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[32t] 42g

Actual weights are measured in-house by the Competitive Cyclist team.

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What do you think about this product?


>Rating: 5

Simple and Effective

I've put it through the wringer

These narrow/wide E.Thirteen chainrings are a really solid replacement or upgrade option. Chain retention is about as good as anything else, and they seem to hold up longer than some of the alternatives. Plus, they're relatively affordable. An all around good choice.


Will this work well for single speed

Yes, it is a narrow-wide chainring which makes it great for single speeds!