Select Page

Ratio Fits Aero Direct Mount 1x Chainrings to ALL 12 & 13 Speed Drivetrains

Ratio Fits Aero Direct Mount 1x Chainrings to ALL 12 & 13 Speed Drivetrains

Ratio Direct Mount chainrings, spiderless aero 1x DM rings for 12 and 13-speed Whether you ride Campagnolo, Shimano, or SRAM, Ratio Technology has the one…

Tuesday, Dec 05

News

Ratio Direct Mount chainrings, spiderless aero 1x DM rings for 12 and 13-speed Whether you ride Campagnolo, Shimano, or SRAM, Ratio Technology has the one CNC-machined 1x chainring to rule ALL 12-speed AND 13-speed setups. Using their own unique narrow-wide tooth profile, these rings work with all the latest drivetrains. From Eagle to FlatTop to Ekar. And their spiderless shaping will both cut through the wind and make your drivetrain easier to keep clean… Ratio Universal fit 12/13sp Direct Mount chainrings

(Photos/Ratio) Ratio already had standard 110BCD chainrings. And the latest 40-44T versions of those already teased universal 12sp & 13sp fit. But now the company that revived a lot of your old mechanical shifters & derailleurs , is giving you a better Direct Mount update as well.

Developed to work with all of the cranks that use SRAM’s modular DM splines, Ratio machines the new rings with both 3-bolt & 8-bolt attachments available. That includes compatibility for all of SRAM’s modern DM road cranks with 45mm chainline. Plus many more from companies like Cane Creek, Easton, e13, Praxis, RaceFace, etc. Shimano HG+ 12, SRAM Eagle 12, SRAM T-Type 12 & Campy 13… but how?

Ratio Direct Mount chainrings, spiderless aero 1x DM rings for 12 and 13-speed, new universal tooth profile It wasn’t a big surprise when Campagnolo jumped to 13-speeds that they would need new chains & chainrings. But SRAM was a bit more sneaky. Redesigning the still-12-speed road FlatTop and then Transmission chain profiles to necessitate completely […]

Share This