e*thirteen Helix e*spec Chainring 104BCD AL Direct Mount 34T Black Weight-162 Tapered core – no need

Tapered core – no need for outer lockring with a secure hold using a Slimline aluminum lock-ring collar

Threaded part is designed to work on the drive-side crank only (9/16" x 20 tpi thread)

- Clamp Diameter: 31

5mm Material Carbon Color Carbon Chainring Size 50/34T Crank Length 175Mm

5/107 PressFit Black

e*thirteen Helix e*spec Chainring 104BCD AL Direct Mount 34T Black Weight-162 Tapered core – no needHelix Core e*spec Direct Mount Chainrings feature a narrow wide tooth profile for reliable chain retention and an extra long wear life. Helix Core e*spec rings are cold formed from steel and then heat treated to provide excellent durability and toughness all at a price that's easy on your wallet.