Original Specification and Options for Modifications

Drivetrain Part

 Specification

Options

Chainring38T, 104 bcd

With chain guide

  • Min: 34t
  • Max: 38t

Without chain guide

  • Min: 34t
  • Max: 40t
Crank Lengths

S: 165 mm

M-XL: 170 mm 

Different, matching cranks can be mounted (e.g. from Levo or other aftermarket cranks with ISIS interface)
Cassette

12 speed for all models

6.0 + 5.0: 10-50

4.0: 11-50

Modifications require usual considerations such as derailleur capacity, chain length, etc.
Brakes

Post Mount, 6- bolt hubs

Stock rotor size: 

  • Front: 200 mm
  • Rear: 180 mm

Max. rotor size: 200 mm

See the SRAM Chainlength calculator  https://axs.sram.com/guides/chain/calculator for recommended chain length for T-Type transmission setup.