SRAM Rival 1 1 x 11 Gravel ChainsetSRAM Rival 1 1 x 11 Gravel Chainset With its tough Forged Aluminium arms and off road optimised chainring, the SRAM Rival 1 GXP Chainset (X SYNC) is the ideal heart for your multi terrain gravel or cyclocross (CX) bike's 1x11 Speed drivetrain. The SRAM Rival 1 chainset provides a single minded proposition to meet your needs and for expanding your limits. The chainrings sharp, narrow tooth profile and rounded chamfer edges help manage a deflected chain