Wolf Tooth Elliptical Direct Mount Chainring – 40t SRAM Direct Mount 6mm Offset Drop-Stop Flattop Compatible Black. Designed to fit SRAM cranksets with removable spiders. Its proprietary design has an ovality of 10% and a timing of 112 degrees after top dead center which provide the beneifits of an oval ring such as greater rear wheel traction without the traditional downsides of oval rings.
Elliptical rings provide smoother more efficient pedal rotation which means better traction
Drop-Stop chainrings are designed for use with 1×9 1×10 1×11 and 1×12 drivetrains
Compatible with all 10- 11- and 12-speed chains with the exception of Shimano 12-speed chains
Shimano 12-speed chains require the use of Wolf Tooths Shimano 12-speed specific chainrings
If using a 9-speed drivetrain use a 10-speed chain which will provide a tighter fit for better chain retention
Not compatible with the SRAM RED and Force AXS 8-bolt interface
Made from 7075-T6 aluminum for long life
Use of a clutch-style rear derailleur is recommended
| Ring Position/Type |
Chain Retaining Single Ring |
| Tooth Count |
40 |
| Round or Oval |
Oval |
| Drivetrain Speeds |
9 |
| Drivetrain Speeds |
10 |
| Drivetrain Speeds |
11 |
| Drivetrain Speeds |
12 |
| Offset |
6 |
| Chainline/Hub Compatibility |
135/142 MTB Hubs |
| Chainline/Hub Compatibility |
141/148 Boost Hubs |
| Chainline/Hub Compatibility |
150/157 DH Hubs |
| Chainline/Hub Compatibility |
157 Super Boost Hubs |
| Material |
Aluminum |
| Defined Color |
Black |
| Direct Mount Type |
Direct Mount SRAM |
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