What are the threads on an Accubrake?

The thread pitch for Accubrakes depends on the barrel contour and model of Accubrake®. Below is a list of the contours and thread pitches that corresponds with the era of Accubrake®.

Accubrake® – 

  • #1 contour - 1/2 - 28 
  • #2 contour - 9/16 - 24 
  • #3 contour - 5/8 - 24 
  • #4 contour - 11/16 - 24

Accubrake® ST –

  • #1, #1 MOD, #2, #2 MOD contour - 1/2 - 28 
  • #3 contour - 5/8 - 24 
  • #4 contour Steel Barrel - 11/16 - 24
  • #4 contour Carbon Barrel - 5/8 - 24