E*Thirteen XCX UL Chainring

UL Chainrings are the lightest 1x XC/Gravel chainrings on the market. Using the SL Chainring as the platform, the arm design was tweaked and strategically machined the chainring so that only minimal sacrifice was made in impact strength for large gains in weight reduction.

UL Chainrings are -5 mm (Boost) offset for use with XCX Race MTB cranks on Boost bikes. If you're installing XCX Race MTB Cranks onto a non-Boost (142 mm) bike, please use SL Chainrings. ALL XCX Gravel applications will use the UL ring.

Features:

• Lightest 1x chainring on the market. Ultralight design, minimal aesthetics, and updated M3 tooth profile.
• 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 (142 mm rear hub spacing)
• Material: 7050 Aluminum
• Mount: QuickConnect™
• Teeth: 30-42T
• Weight:
  • 30T: 52 g
  • 32T: 54 g
  • 34T: 58 g
  • 36T: 64 g
  • 38T: 70 g
  • 40T: 79 g
  • 42T: 86 g

Compatibility:

• 10/11/12-Speed. Both Shimano™ and SRAM™ 12-Speed drivetrains.
• Cranks: Legacy E thirteen cranks with direct mount interface, All TRS Cranks, All LG1 cranks.
• Not compatible with Helix

Note: Not compatible with Helix cranks. Helix cranks require Helix rings.