

Hi, I am building a new (old stock) 2017 Raleigh RXM. I put the front brake mount adapter on the matching fork and it fits perfectly. The issue I am running into is the rear mount for both the 140mm and 160mm adapter. It’s shorter than the mounts on the frame, obviously I need new mounts, but I was unaware that they come in different lengths. How do I know exactly what I need? Any help is appreciated!
by Low_University_9545
1 Comment
That’s post mount. You have a flat mount brake. Adapters exist, but I’m not super well versed on them. Bizarre that they use different standards, but I confirmed [here. ](https://99spokes.com/bikes/raleigh/2017/rxs)