Shave over 11 grams from our original Guidering, and update the design to not only look better, but perform 30% better in impact and you have our SL Chainring.SL Chainrings are -8mm (non-Boost) offset, for use with ALL* cranks (except XCX Race cranks). Key Features: Chain retention: Updated M3 narrow-wide tooth profile eliminates chain noise, and decreases overall system wear.Chainline: TRS/LG1 Cranks: UL Chainring for SuperBoost chainline. SL Chainring for non-Boost and Boost chainline.XCX Mountain Cranks: UL Chainring for Boost chainline. SL Chainring for non-Boost chainline.XCX Gravel Cranks: UL Chainring for non-Boost chainline (142mm rear hub spacing)Compatibility: 10/11/12 speed. Compatible with both Shimanoand SRAM12 speed drivetrains.Features: Lightweight and durable design, minimal aesthetics, and updated M3 tooth profile.Material: 7050 AluminiumMount: QuickConnectTeeth: 28-38t optionsWeight: 58g