Wolf Tooth Direct Mount Chainrings for Trek TQ E-Bike Motors are compatible with all Boost and Super Boost bikes that use the Trek TQ Motor. This brings a lightweight chainring with patented Drop-Stop technology to e-bike chainrings for the first time. Direct Mount Chainrings for Trek TQ E-Bike Motors are machined with 7075-T6 aluminum at Wolf Tooth in Minnesota, USA.

Compatibility:
– Chainring is compatible with only TQ Motor drive systems
– 55 mm chainline
– Available in two different tooth profiles for optimal performance based on your chain type. Use Drop-Stop ST for use with Shimano 12-speed Hyperglide+ and 12spd KMC chains. Use Drop-Stop B for all 9, 10, and 11spd chains or 12spd SRAM Eagle, SRAM Flattop Road or Transmission (T-Type), KMC, Connex or Wippermann chains.

DROP-STOP B
– Compatible 9, 10, 11, and 12s SRAM Eagle, 12s SRAM Transmission (T-type) Flattop, 12s Campy, 12s KMC
– Not compatible with 12s Shimano HG+ chains

DROP-STOP ST
– Compatible with 12s Shimano Hyperglide+ chain and 12s KMC chain only
– Symmetric Trapezoidal (ST) tooth shape is optimized for Shimano HG+ chain

Tech Specs:
– Weights: 30t/64g | 32t/69g
– Material: 7075-T6 aluminum
– Made in the USA