The YBN SLA MK12-E is an e-bike–rated 12-speed Flat Top chain designed for SRAM AXS Road, XPLR, and T-Type MTB/Gravel drivetrains.

Built with solid plates, solid pins, and reinforced riveting, the MK12-E delivers exceptional strength and shifting stability—especially under high-load or electronic shifting conditions. Its durability makes it ideal not only for mid-motor e-bikes, but also for riders who frequently shift under heavy pedalling torque, such as with T-Type transmissions.

All YBN chains meet ISO tensile standards (~8000 N / 4000 W+), ensuring reliable performance across demanding applications.

The MK12-E offers the proven efficiency advantage of YBN’s SLA coating—around 40 % lower drivetrain losses compared to SRAM Flat Top chains (CeramicSpeed testing)—while maintaining excellent wear resistance.

Compatible with:

• Road: SRAM AXS E1 Range - Rival / Force / Red

• MTB / Gravel: T-Type GX / X0 / XX / XX-SL

Not compatible with non-Flat Top systems (Shimano 12s, SRAM Eagle non-T-Type, Campagnolo, etc.).

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Tough-as-nails Flattop chain for MTB trails and eBike power.

The YBN MK-H12e Flattop Chain is built for tough mountain bike and eBike riding. Its lightweight, flattop design offers strength and precise shifting, while advanced treatments like DHA hardening and Ti-Nitride protective finish ensure durability and wear resistance. Designed to handle rough trails and eBike power, this chain delivers a smooth, quiet ride, making it ideal for riders seeking performance and reliability in demanding conditions.

Features
DHA chromium carbide pin and roller for strength and longevity
Precision chamfering for smooth shifting and quiet engagement
3x chromium hardening process makes chain 30% stronger
Ti-Nitride protective finish for durability and vibrant color

Specifications
1/2" x 11/128", 5.2mm width
126 links or 136 links
Compatible with all 12sp MTB Flattop drivetrains, including T-Type
MTB specific (e-bike compatible)
Box contents include 1 chain and master link

Mfr Claimed Weight
271g/126 links, 288g/136 links