Free WT-1 With Chainring Purchase

Add any chainring and a .5 fl oz bottle of WT-1 to your cart, then enter code 'WT1LastsLonger' at checkout to get your free WT-1 Chain Lube.

Promotion Expires 12-31-2024

SHOP CHAIN LUBE

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.
COMPATIBLE WITH WOLF TOOTH 107BCD CHAINRINGS
SRAM RED FC-RED-1-D1
FORCE 1 AXS POWER METER PM-FRC-1-D1
FORCE AXS POWER METER PM-FRC-D1
FORCE CRANKSET FC-FRC-D1
FORCE 1 CRANKSET FC-FRC-1-D1
COMPATIBLE WITH WOLF TOOTH 8-BOLT CHAINRINGS
RED AXS POWER METER PM-RED-D1
RED 1 AXS POWER METER PM-RED-1-D1
RED CRANKSET FC-RED-D1
FORCE 1 WIDE CRANKSET FC-FRC-1W-D1
FORCE 43/30 WIDE CRANKSET FC-FRC-W-D1
RIVAL 1 AXS WIDE POWER METER PM-RIV-1W-D1
RIVAL 1 WIDE CRANKSET FC-RIV-1W-D1
NOT COMPATIBLE
RIVAL CRANKSET FC-RIV-D1
RIVAL AXS POWER METER PM-RIV-D1
RIVAL 43/30 WIDE CRANKSET FC-RIV-W-D1
RIVAL AXS 43/30 WIDE POWER METER PM-RIV-W-D1

 


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 

    LoneWolf Aero Chainguide

    Tech Specs

    Material: 7075-T6 aluminum
    Weight:  38t • 72g  |  40t • 79g  |  42t • 78g  |  44t • 90g
    Made in the USA

    Patent and trademark information

    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:

    • Connex
    • Wipperman
    • Campagnolo
    • SRAM Eagle
    • SRAM Road and Transmission (T-type) Flattop chains

    Not compatible with 12s Shimano HG+, 12s KMC, or 13s Campagnolo chains

    All 9s, 10s, and 11s Chains

    12s Chains:

    • SRAM® Eagle
    • Connex
    • Wippermann

    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:

    • Shimano HG+
    • 12s KMC

    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 navigate_next

    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 navigate_next

    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 navigate_next

    *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.

    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.