Brake fitting size and angle

Moto Guzzi V700, V7 Special, Ambassador, 850 GT, 850 GT California, Eldorado, and 850 California Police models

Created: 2018 November 05

Updated: 2018 November 05

When I added a disc front brake to my Ambassador, I had access to original hoses and fittings. I measured the thread size and angles of all fittings. Here is that data:

Hose - Front master cylinder to union:

• At front master cylinder:
  • Type of fitting: Banjo.
  • Angle at master cylinder: 25°.
  • Thread size: 10 mm × 1.25 mm.
  • Note: When I built my own replacement brake hoses, I used a 30° fitting at this location.
• At union:
  • Type of fitting: Banjo.
  • Angle at master cylinder: 0° (no bend).
  • Thread size: 10 mm × 1 mm.
  • Note: When I built my own replacement brake hoses, I used a 0° fitting at this location.
• Length:
  • Overall length: 51.5 cm.
  • Center-to-center length: 47 cm.
  • Note: Unless you are using the exact same rubber hose material, the stated length probably won't work for you. Best to build to suit taking into consideration the stiffness and bend-radius of modern hoses.

Front brake light switch:

• At union:
  • Thread size: 10 mm × 1.25 mm.

Hose - Union to right front caliper:

• At union:
  • Type of fitting: Banjo.
  • Angle at master cylinder: 25°.
  • Thread size: 10 mm × 1 mm.
  • Note: When I built my own replacement brake hoses, I used a 30° fitting at this location.
• At right front caliper:
  • Type of fitting: Banjo.
  • Angle at master cylinder: 0° (no bend).
  • Thread size: 10 mm × 1 mm.
  • Note: When I built my own replacement brake hoses, I used a 60° fitting at this location.
• Length:
  • Overall length: 51.5 cm.
  • Center-to-center length: 47 cm.
  • Note: Unless you are using the exact same rubber hose material, the stated length probably won't work for you. Best to build to suit taking into consideration the stiffness and bend-radius of modern hoses.