e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount Size:30T Darn Tough Socks are Unconditionally

Darn Tough Socks are Unconditionally Guaranteed for Life

SINC ceramic hub bearings are engineered with optimum bearing clearance for minimum friction

thinner aluminum platform for Trail or DH use

Features a weight saving 4-bolt design with a BCD of 110 mm Ring Position/Type Outer Tooth Count 52 Drivetrain Speeds 11 Chainring BCD 110 Shimano Asymmetric Color Black Defined Color Black Combination 36/52T

Tire Diameter/ISO 700C/622 Labeled Size 700x40C Tire Width Range 39 - 50 Tire Type Tubeless Ready Primary Color Black Bead Folding Tire Width 40C Tubeless Technology Tubeless Ready

e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount Size:30T Darn Tough Socks are UnconditionallyHelix Race 8 Bolt Chainrings are an update to any 8 bolt drivetrain. Exquisitely machined from 7075 AL they're stiff and durable and provide a significant weight reduction over competitors. A unique four bolt locking interface reduces assembly weight while improving longevity and ease of assembly and maintenance. Featuring e*thirteen's M4 narrow wide tooth profile they deliver excellent chain retention long wear life and cross compatibility. Helix