- CNC machined threaded steel track cogs or lockring, both with chrome-plated finish
- Cogs: 1.37"x24tpi (right handed) threads, 1/2" x 3/32" teeth (OK for 9sp chain)
- Lockring (GU1799): 1.29"x24tpi (left handed) threads, 4-notch tool fitting (sold separately)