Tool to install and remove e*thirteen BB's (except BB92), chainring/spider lockring, and Gen 1 cassette lockrings.

Lighter, stronger and better looking than our original Guiderings; the Guidering SL is intended for use on TRS, LG1 and legacy e*thirteen cranks. . .

UL Chainrings are the lightest 1x XC/Gravel chainrings on the market. Using the SL Chainring as the platform, we tweaked the arm design and stra. . .

Save up to 82% while supplies last! Final Sale.* PROVEN CROSS-COMPATIBILITY APPLIED TO AN ULTRA-LIGHTWEIGHT, DURABLE AL-7075-T6 CHAINRING. HIGHL. . .

Style (and Performance) for Days Customize your ride with the Helix Race Direct Mount Chainring. Made from ultra-lightweight and durable AL-70. . .

The Helix Plus Direct Mount Chainring is a direct OEM replacement, engineered with our advanced M4 narrow-wide tooth profile for maximized chain. . .

Save up to 50% on our aluminum rings while supplies last! Note: (This is a discontinued product. If you don't see the size or config you need, . . .

Updated G4 narrow-wide tooth profile improved retention, reduced chain noise, and decreased system wear. Flip-Flop - 52mm (Boost) and 55mm (S. . .

GRAVEL HARDER. ADVENTURE FURTHER. The Helix Race 107 BCD Chainring is a high-value quality upgrade for Gravel and Road Cyclists using 4-bolt 107. . .

Helix Race GR chainrings are gravity-optimized direct mount chainrings specifically intended to be used with Helix Race GR cranks. They are desi. . .

Helix Race 8-Bolt Chainrings are an upgrade to any 8-bolt drivetrain. Exquisitely machined from 7075-AL, they're stiff and durable, and provide . . .

Direct power transfer. 104 BCD flexibility. Upgrade your e-bike with e*thirteen's 104 BCD Spider, designed for seamless compatibility and effici. . .

A lightweight and affordable e-bike spider compatible 104BCD chainring, with excellent chain retention and wear-life.     The Helix e*spec 104BC. . .

Helix Core e*spec Direct Mount Chainrings feature our narrow-wide tooth profile, for reliable chain retention and an extra long wear life. Helix. . .

Save up to 53% on Bosch® 13mm Eggplant and Naranja rings while supplies last! Helix R e*spec Chainrings merge cutting-edge design and perform. . .