SRAM Force AXS D1 Flattop 12 Speed Chain 120 Links

• Flattop technology allows for a narrower chain with quieter operation and increased strength and durability.
• Hard Chrome plated inner and outer plates for faster and more precise shifts
• Requires new Flattop Powerlock (included with chain)

Beyond an incremental improvement. The Flattop technology of the SRAM Force chain creates a lighter, quieter, stronger chain.

What if you could add range to your drivetrain while also smoothing the gear progression with smaller differences in tooth count between neighbouring gears? And what if you could gain that without losing drivetrain efficiency or having to replace your chain more frequently? Our unique Flattop chain link design is a key element that makes all of these improvements possible.

To gain a wider gear range with smaller gearing steps, the chain has to get narrower. With Flattop, we’ve added material on the flat side of the chain plates to strengthen every link. The Hard Chrome surface treatment on the pins, inner plates, and rollers also extends the life of the chain and keeps it shifting precisely over the long haul. Additionally, Flattop chains feature longer wearing large diameter rollers that help deliver the same drivetrain efficiency as our 11-speed drivetrains. All of these technologies together have enabled us to engineer a narrower 12-speed chain that lasts 36% longer than our 11-speed chains.