The Helix Plus Direct Mount Chainring is a direct OEM replacement, engineered with our advanced M4 narrow-wide tooth profile for maximized chain retention, reduced noise, and system wear reduction. Compatible with e*thirteen Helix, TRS, LG1, and XCX MTN Direct Mount cranks, this chainring is available in sizes 30T, 32T, and 34T, constructed from 7075 T6 Alloy for reliable durability and finished with a matte black coating.