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Chain Gap Adjustment Gauge

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$3.5 $7 In stock

This Chain Gap Adjustment Gauge from SRAM is a nearly indispensable tool for setting up SRAM derailleurs. It helps you confirm the correct chain gap quickly and accurately, supporting proper drivetrain setup.

  • Works with SRAM eTap AXS cassettes in 26T to 44T sizes.
  • Available in multiple configurations, including a 50T option and an EX1 Chain Gap Gauge version.
  • Simple, purpose-built design for chain setup tasks.
  • Choose the option that matches your specific cassette range or setup need.
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 4 reviews)

Michael R. ★★★★★

I put off buying a derailleur gauge for years and just eyeballed it, which was dumb. This little plastic tool clicks into place and shows you the exact chain gap in seconds, no more guessing. Shifting is noticeably cleaner now.

George ★★★★★

Setting the chain gap on my derailleur used to be a guessing game, but this gauge got it dialed in on the first try. It snaps right onto the chainring and the markings make the gap obvious at a glance.

Stella ★★★★★

Setting up the derailleur on my gravel bike used to be pure guesswork, but this gauge takes the eyeballing out of it. The markings make it obvious where the gap should sit, and I had the chain gap dialed in on the first try.