107 BCD Chainrings for SRAM
10738-FT
Pairs well with
107 BCD Chainrings for SRAM
Wolf Tooth is committed to provide the most precision components possible and has three different tooth profiles for optimal performance based on your chain type.
| Tooth Profile | |||
|---|---|---|---|
Tooth Profile |
Drop-Stop® B |
Drop-Stop® A |
Drop-Stop® ST |
| Chain Compatibility | |||
Chain Compatibility |
All 9s, 10s, and 11s Chains 12s Chains:
Not compatible with 12s Shimano HG+, 12s KMC, or 13s Campagnolo chains |
All 9s, 10s, and 11s Chains 12s Chains:
You can use Drop-Stop B when Drop-Stop A is not available* Not compatible with 12s SRAM Transmission (T-Type) and Road Flattop, 12s Shimano HG+, 12s KMC, 12s Campagnolo, or 13s Campagnolo chains |
12s Chains:
Not compatible with all other chains |
| Details | |||
Details |
 Tooth shape is nearly identical to Drop-Stop A, but has narrower teeth. Valley between teeth is deeper to accommodate larger rollers on Flattop chain. Outside faces of narrow and wide teeth touch chain to guide alignment. Drop-Stop B Chainrings |
 The original Drop-Stop tooth profile. The wide teeth are wider than Drop-Stop B. Outside faces of narrow and wide teeth guide chain alignment. Drop-Stop A Chainrings |
 Narrower teeth than Drop-Stop A. Wide teeth use Symmetric Trapezoidal (ST) profile to match extended inner edge on chain to create alignment (outside faces of wide teeth do not touch). Interaction of narrow teeth and chain are similar to Drop-Stop A and B. Drop-Stop ST Chainrings |
*We are in the process of migrating most Drop-Stop A to Drop-Stop B to make them compatible with SRAM Road and Transmission (T-type) Flattop chains.
Wolf Tooth 107 BCD Chainrings for SRAM Cranks are compatible with SRAM gravel and road cranks that use the 107 BCD spider, including the SRAM AXS Power Meter Spider. These chainrings use the patented Wolf Tooth Drop-Stop B Wide/Narrow tooth profile that is optimized for 12-speed Eagle and Flattop chains.
- Aero chainrings available in 46-50T. Sizes 38-44T are non-aero.
- Fits SRAM AXS 107 BCD cranks with a removable power meter spider and SRAM 107 BCD cranks with removable spiders.
- Drop-Stop technology prevents dropped chains. On Wolf Tooth’s patented wide/narrow chainring, the wide side of the tooth has maximum contact on the drive side which spreads the load and improves chainring life. The narrow side allows clearance for mud and debris while reducing friction.
- SRAM Cranks that use the 107 BCD spider also use the SRAM 8-bolt interface, which is compatible with Wolf Tooth Direct Mount Chainrings for SRAM 8-Bolt
Compatibility
- Designed for SRAM 107 BCD cranksets with removable power meter spiders. Also fits standard SRAM 107 BCD removable spiders without power meters.
- Compatible with SRAM 12-speed and 13-speed groupsets including SRAM Red XPLR AXS.
- Not compatible with SRAM Rival 107 BCD cranksets with integrated (non-removable) spiders. (models ID's FC-RIV-D1 and PM-RIV-D1)
- Chainline is determined by the crank model. See manufacturer specs for chainline.
- Chainrings are designed for 1x drivetrains. They are not compatible with 2x drivetrains.
Recommendations
- If you plan to ride in very extreme or muddy conditions, we recommend a chainguide or chainkeeper (like our LoneWolf or GnarWolf ). Without these precautions, there is the possibility of experiencing chaindrops, even with a proper clutch-style rear derailleur.
- Recommend the use of a clutch-style rear derailleur for the best chain security.
- For non-aero chainring installation, use SRAM chainring bolts and caps. Apply light grease to threads and torque to 12Nm with a T30 bit.
- For Aero Chainring installation, use the included Wolf Tooth chainring bolts. Apply light grease to threads and torque to 8Nm with a 4mm hex bit.
Related Products
Direct Mount Chainring for SRAM 8-Bolt cranks
Set of Four Chainring Bolts+Nuts for 1x Chainrings
Elliptical 107 BCD Chainring for SRAM
Tech Specs
Material: 7075-T6 aluminum
Weight: 38t • 72g | 40t • 79g | 42t • 78g | 44t • 90g
Made in the USA
WARNING Handling this product will expose you to chemicals, including lead, known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands after handling. For further information go to www.P65Warnings.ca.gov.