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)
Cranks Compatible with: Legacy e*thirteen cranks with direct mount interface, All TRS Cranks, All LG1 cranks.
Not compatible with: Helix
Guaranteed to be free from defects in materials or workmanship for 5 years after original purchase