e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount Size:30T Tire Diameter/ISO 700C/622 Labeled Size

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

Featuring forged aluminum arms and SRAM's game changing X-Sync chainrings this crankset hits the sweet spot between weight durability and performance

Nalgene Bottle

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

e*thirteen Helix Race 8-Bolt Chainring - 11/12-Speed 3mm Offset 8-Bolt Direct Mount Size:30T Tire Diameter/ISO 700C/622 Labeled SizeHelix 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