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We are experiencing issues with Pro Program pricing on the website. While we work on a fix you can either send us an email at dealers@wolftoothcomponents.com with the specific SKUs you want and we'll send an invoice or you can place the order on our site and send us an email requesting a refund for your discount amount.

 

Wolf Tooth custom made this chainring for 3T Torno's spider and crankset. The countersunk bolt pattern is specific to the Torno spider and transfers your power not just via its bolts but also its shape for optimal power transfer. This 1x-specific chainring uses the Drop-Stop® tooth profile for the best performance. 

  • Fits only 3T Torno Spider

  • Alternating wide/narrow tooth pattern prevents chain derailment

Compatibility

  • These rings only fit on the 3T Torno 1x crankset
  • The Torno is optimized specifically for 1x drivetrains
  • Chainline - 47mm (optimized for 1x in combination with 142mm rear axle spacing)
  • Must use 3T bolts provided with crankset

 

Recommendations

  • If you plan to ride in very muddy conditions, try using a chainguide or chainkeeper in addition to a clutch-type rear derailleur. Without these precautions, you may experience chaindrops and/or chainsuck

Related Products

Tech Specs

Weight:  36t • 79g  |  40t • 89g  |  44t • 110g
Material:  7075-T6 aluminum

 

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+, 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.