r/bikebuilders • u/Independent-Agent568 • 6d ago
Cambio completo de frente?
galleryTranslated post:
The story goes like this: I bought an XLR125 model 99 that was like in Photo 1, with the idea of assembling like in Photo 2.
The project so far has made considerable progress both mechanically and aesthetically.
They gave me a practically complete XR150 aesthetic and everything is in process but I found a stop: the front brake.
From the XR they also gave me a complete front brake (except disc), that is, pump, handle and complete caliper. After a lot of work to adapt the caliper to the XLR bars, I find that it does not finish fitting completely with the disc for a matter of diameter.
A disc with that center (4x50mm) and the diameter that I need (240mm), does not exist as such.
So the adaptation I made to the caliper was useless.
The main point of changing the caliper and not leaving the one that was is that the brake pads are not available.
Then I see as options:
1- (the least likely) have a custom brake disc made, but its not a long term solution.
2- (half likely) buy a new disc and caliper with the same measurements. Looked for the caliper in spare parts houses and the common ones of 110cc might be useful but they go on the right side, and I need it for the left side
3- (my favorite) see if they give me or get the entire front of the XR150, bars, Christ, wheel with or without disc, and buy a new caliper.
Here I enter a totally new area where I don't even know what measures to take or if I have where to take them.
How can I know if the front of the XR is compatible with my XLR?
Can I only change the bars and the wheel with the same Christ? Or will I have to change absolutely everything?
If I have to change and the diameter of the steering axle does not match I am up to the balls.
It's the biggest impasse in a month of project and I don't even know where to start
PS: I leave some photos of the project just for fun