Help! XT brakes on 200mm SRAM Rotors

sjb1781

Hi, I recently swapped forks from Yari 2017 to Yari 2018 with +30mm travel...straight swap right? It was, until I came to fitting the XT callipers back on. The post mounts on the 2017 forks are angled and the post mounts on the 2018 forks are almost parallel and now the pads don’t align with the SRAM 200mm rotors. Tried the original Avid adapter and a new Shimano adapter...neither fit....anyone have any suggestions? Or done this before? Will add photos....have photos but can’t see how to add in here....

billycool

You need to create an account with someone like this:

https://imgbb.com/

You can then imbed a link to the photo and we can all see it.

cobba

Older Yari's had 160mm post mounts, more recent Yari's have 180mm post mounts.

sjb1781 wrote:

The post mounts on the 2017 forks are angled

They would be 160mm post mounts.

For 200mm rotor you would use a SRAM 40MM POST adapter.....
http://www.bikeman.com/BR2041.html

For 203mm rotor you would use a Shimano SM-MA-F203P/P (43MM) adapter.....
http://www.bikeman.com/BR8914.html

the post mounts on the 2018 forks are almost parallel

They would be 180mm post mounts.

For 200mm rotor you would use a Shimano SM-MA-F180P/P2 (20MM) adapter.....
http://www.bikeman.com/BR8593.html

SM-MA-F180P/P2 Installation.....
https://si.shimano.com/#/en/SI/8170A

For 203mm rotor you would use a Shimano SM-MA-F203P/PM (23MM) adapter.....
http://www.bikeman.com/BR8598.html

SM-MA-F203P/PM Installation.....
https://si.shimano.com/#/en/SI/0146A

* The SM-MA-F180P/P2 was made before 180mm post mounts were introduced, on 160mm post mounts it's a 180mm adapter, on the more recent 180mm post mounts it's a 200mm adapter. The adapter name 'SM-MA-F180P/P2' is a old name that doesn't reflect that it can be used on more then one post mount size for more then one rotor size.

sjb1781

Thanks for the help...all sorted!