Sram Rival 1 Chainset GXP 172.5 110 BCD 50 Tooth X-Sync No BB

Specifications
Designed for a single-ring drivetrain that eliminates the mud-catching front derailleur.
Forged aluminum arms with detachable spider.
Includes alloy CNC-machined X-SYNC chainring.
Interface: GXP.
Bottom bracket sold separately.

Mfr Claimed Weight
799g (172.5mm/GXP) with 42t chainring/without BB