KMC X-Flat 12-Speed Chain - Aurora is a purpose-built Flattop chain engineered to match the demands of modern SRAM 12/13-speed AXS and SRAM Transmission T-Type drivetrains. The Flattop profile supports a narrower chain package, helping deliver precise shifting and consistent drivetrain control under load—ideal for riders upgrading or replacing a worn chain on SRAM’s latest road, gravel, or MTB electronic platforms.
SRAM AXS / Transmission T-Type specific - Designed specifically for SRAM 12/13-speed AXS and Transmission T-Type drivetrains for correct fit and intended shift performance
Flattop chain design - Enables a narrower chain profile for compatibility with SRAM’s current-generation Flattop/T-Type drivetrain architecture
Pre-waxed - Comes pre-waxed to reduce initial setup time and start riding with a clean-running lubricant choice
Compatibility note - Not compatible with other 12/13-speed systems or older SRAM groups
Weight - 253g
Specifications & Identifiers
Chain Compatibility
SRAM AXS 12, SRAM T-Type (Transmission)
Chain Connection Type
Single Use Master Link
Color
Aurora
Defined Color
Multi-Color
Designed for ebike
No
Half Link Chain
No
Links
126
Number of Speeds
12-Speed, 13-Speed
Weight
253
UPC
766759712181
MPN
CN12181
Tree Fort ID:
333222475906
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