" Specials " e*thirteen UL Chainring Direct Mount 34T 5mm Boost Offset 10/11/12 speed for ethirteen cranks NOT Helix Compatible BlackUL Chainrings are the lightest 1x XC/Gravel chainrings on the market. Using the SL Chainring as the platform, we tweaked the arm design and strategically machined the chainring so that only minimal sacrifice was made in impact strength for large gains in weight reduction. UL Chainrings are -5mm (Boost) offset for use with XCX Race MTB cranks on Boost bikes. If you're installing XCX Race MTB Cranks onto a non-Boost (142mm) bike, please use SL Chainrings. ALL XCX Gravel applications will use the UL ring. UL Chainrings are not compatible with Helix cranks. Helix cranks require Helix rings. PRODUCT SPEC 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) Color Black Compatibility 10/11/12 speed. Compatible with both Shimano™ and SRAM™ 12 speed drivetrains. Cranks Compatible with: Legacy e*thirteen cranks with direct mount interface, All TRS Cranks, All LG1 cranks. Not compatible with: Helix Features Lightest 1x chainring on the market. Ultralight design, minimal aesthetics, and updated M3 tooth profile. Material 7050 Aluminum Mount QuickConnect™ Teeth 34t Weight 58g
