Selecting the correct Hope brake mount

Selecting the correct Hope brake mount

Selecting the correct disc brake mount can be confusing with a mind blowing range of mount standards and rotor sizes.

So lets break down how to select the correct mounts with speed and ease! 

Mount types

IS Mount

There are 4 mounting types. Older bikes (pre 2004) tend to have what would be called IS (international Standard) mount (see picture)

These mount types bolt the calliper onto the frame horizontally either straight into the calliper or into an adaptor to take your IS mount frame to a (more modern) Post Mount standard.

For Hope these are numbered A F N R B D E G and J (Please refer to the chart below for more detail)

There is a 20mm difference in the rotor size these mounts fit depending on weather you fit them to the front or the rear of your bike. For instance the F mount is for a 180mm rotor when fitted to the front fork and will be 160mm when fitted to the frame.

Post Mount

Post mounts are found on most modern mountain bikes and consist of a vertically mounted adaptor that means you can scale the rotor size up and down very easily. 

With these mounts you will need to know what size rotor your bike can use without requiring an adaptor atall. You can do this by consulting the owners manual, reading the size off your current rotor or by taking some basic measurements from your frame or fork mount (see picture)

Once you know what rotors size your fork or frame takes without a mount you can then select the new mount based on what rotor size you want to go to.
For instance to go from a 140mm rotor to a 160mm rotor the nomenclature would look like this: Post mount 140mm > Post mount 160mm 
These mounts are numbered K L M P Q C & H
Flat Mount
Flat mount adaptors are probably the most simple to figure out with all size rotors requiring a mount so you simply just select the size rotor you want to use and the correlating mount.
These mounts are front and rear specific and are numbered Z X and Y
The front mounts are able to be flipped over to give you a different size so the 140mm mount is also a 160mm mount if you flip it over. 
The rear mounts are not flippable. 
Please consult the fitment chart below for more information and you can purchase your Hope mounts here.
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