SRAM RED Flattop E1 Chain - 12/13-Speed | 126 Links

SRAM RED Flattop E1 Chain - 12/13-Speed | 126 Links SRAM

SRAM RED Flattop E1 Chain - 12/13-Speed | 126 Links

SRAM RED Flattop E1 Chain - 12/13-Speed | 126 Links

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What makes the SRAM RED Flattop E1 Chain the benchmark for 12/13-speed road?

The RED Flattop E1 Chain is the lightest and most durable chain SRAM has produced, built around HollowPin construction that uses a hollow-core pin stronger than a solid pin at a fraction of the weight. Strategic cutouts in both the outer and inner plates drop 13 grams from the previous generation without sacrificing structural integrity. The Flattop outer plate geometry lowers the chain's overall profile, reducing the height difference between inner and outer plates to improve shifting speed and precision across the full cassette range at 12 and 13 speeds.

At 126 links the E1 fits most road and gravel builds with material left to trim for your exact frame and chainring combination. Compatible with the full RED AXS and RED XPLR AXS 12/13-speed drivetrain ecosystem. The PowerLock master link is included for tool-free installation and reuse-free replacement. If you are running a RED AXS drivetrain and want the chain that matches the engineering spec of the rest of your groupset, the E1 is the correct choice.

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$99.99
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Specifications

  • Speed: 12/13
  • Links: 126
  • Construction: HollowPin
  • Connection: PowerLock master link included
  • Profile: Flattop
  • Version: E1
  • System: RED AXS and RED XPLR AXS 12/13-speed

FAQ

What is Flattop chain geometry and why does it matter?

Flattop reduces the height difference between the inner and outer plate profiles, creating a more uniform surface that improves how the chain seats on and releases from the cassette cogs. The result is faster, cleaner shifts, especially important at 12 and 13 speeds where cog spacing is tighter.

Is the E1 chain backward compatible with 11-speed SRAM drivetrains?

No. The Flattop profile is not compatible with 11-speed or older SRAM drivetrains. It is designed exclusively for RED AXS 12-speed and RED XPLR 13-speed systems.

Can the PowerLock link be reused?

SRAM recommends replacing the PowerLock link each time the chain is removed rather than reusing it. A fresh PowerLock ensures full locking engagement and reduces the risk of link failure under load.

Best For

Road and gravel riders running RED AXS or RED XPLR AXS 12/13-speed drivetrains who want the lightest, most durable chain in SRAM's lineup.

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