Wolf Tooth Drop-Stop B 40T Chainring – 3T Torno Flattop 1x

Wolf Tooth 40T Drop-Stop B Chainring 12Sp 100BCD 3T Torno 1x Road CX Gravel New

The Wolf Tooth Drop-Stop® B 40T chainring is designed exclusively for the 3T Torno crankset. Its countersunk bolt pattern matches the Torno spider, ensuring a precise fit and efficient power transfer.

Made in the USA from high‑grade 7075‑T6 aluminum, this chainring is crafted with tight tolerances for a secure fit, reduced weight, and long‑lasting strength. The patented Drop-Stop® B narrow‑wide tooth profile is optimized for SRAM AXS Flattop 12‑speed chains, while also compatible with all 9, 10, and 11‑speed chains, plus 12‑speed Eagle, Connex, Wippermann, and Campagnolo (excluding Shimano HG+ MTB, 12s KMC, and 13s Campagnolo). With a 47mm chainline tuned for 1x drivetrains and 142mm spacing, it’s ideal for road, gravel, and cyclocross setups.

Each unit is brand new in retail packaging direct from Wolf Tooth, making it a dependable upgrade or replacement for riders running a 3T Torno crankset.

Condition Note:

New — In retail packaging.

Key Features:

• Precision‑crafted from 7075‑T6 aluminum in the USA for strength, low weight, and exact fit

• 40T chainring with 100 BCD bolt pattern

• Fits only 3T Torno 1x cranksets (not universal 100 BCD)

• Drop-Stop® B narrow‑wide tooth profile for secure chain retention

• Optimized for SRAM AXS Flattop 12‑speed chains

• Also works with 9/10/11‑speed chains and select 12‑speed (Eagle, Connex, Wippermann, Campagnolo)

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

• Chainline: 47mm (optimized for 1x drivetrains with 142mm spacing)

• Weight: 89g (40T)

• Must use 3T Torno‑specific bolts (supplied with crankset)