Magura QM40 adapter - Post Mount 160-180 / 140-160
Magura make a wide selection of disc brake caliper mounts to fit and work perfectly with their brake systems
This adapter allows you to run a 180mm rotor on a post mount fork / rear frame designed for a 160mm rotor
or
allows you to run a 160mm rotor on a post mount fork / rear frame designed for a 140mm rotor
The packet contains the following:
- 1 x Black Post Mount adapter QM 40
- 2 x washers
- 2 x calliper mount bolts - M6
These are designed only for the purpose stated - if you are not sure, consult a qualified bicycle mechanic
The mount is supplied with bolts for mounting to frame / fork as appropriate
Colour: Black

Post mount has a 74.2mm space between holes and is very common on mountain bike forks and on most rear MTB triangles / frames
This adapter set will NOT work on IS (International Standard) mounts or Flat Mounts (as used on many road / gravel bikes)
| Example uses: |
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We have used these adapters in the following scenarios (as an example)
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