SRAM Alloy Road Bicycle Chainring – 110mm BCD Review Posted by GiantPandaisy June 13, 2018 in Drivetrain Components Lightweight alloy chainrings For BB30 S-Pin or GXP L-Pin options Use with 34T Lightweight alloy chainrings. For BB30 S-Pin or GXP L-Pin options. Use with 34T Cycling Outdoor Recreation Parts & Components Sports & Outdoors SRAM