disc brake flat mount facing tool

[PLA]

any from aliexpress that aren't shit?

thinking of adding one to my toolkit.

[robinoco]

I guess this is a no then? Anyone???

[ZacItaly15]

there is only the icetools cutting tool but it's not a bargain
I suppose the LBS can't charge you more than 20bucks for a facing

[pushpush]

The precision you desire for this task is not what you should expect from a cheap tool.

[Ultramic]

Get a sanding block, bridge between the 2 mounts and sand it down. If it has been painted over, then take away all the paint. Its not perfect but it works.

[pushpush]

Get a sanding block, bridge between the 2 mounts and sand it down. If it has been painted over, then take away all the paint. Its not perfect but it works.

Please don't follow this advice. Ensuring perpendicularity to axle is critical. If you don't plan to do this correctly, pay someone else to do it correctly.

[Ultramic]

Please don't follow this advice. Ensuring perpendicularity to axle is critical. If you don't plan to do this correctly, pay someone else to do it correctly.

Go ahead and pay a bike shop, be my guest. I've built up many bike and done this and the brakes have been perfect, no rubbing whatsoever.

[Blueberry]

I've struggled to find shops that can face a frame :/ A few years ago I called like 10 different local bike shops looking for one with facing tools. None of them had them because they're seen more as frame builder's tools. Finally Mike's Bikes told me they had a warehouse with all the tools that could send them out for the job. I took the frame to Mike's Bikes and when I got it back, it was clear that all they did was sand the paint off. I was annoyed because I had gone out of my way to take the frame to them rather than taking it to many of the much closer shops because they said they could get the tools to do it properly. That being said, they only charged me $20 so I decided to just let it go.

Facing is expensive because the tools cost thousands of dollars, they need to be sent out for sharpening on a regular basis, and the process takes a couple hours and a lot of precision. Unfortunately the chances of finding a budget facing option seem slim to me

[pushpush]

A far cry from a cheap tool, but it is possible to periodically grab a barely used park facing kit on ebay for a couple hundred dollars. Similar to a RD hanger straightener, this is a tool that makes me feel like I have super-mechanic powers.

Squaring rotors, rather than merely bringing the outer edge into a consistent plane, can also make a huge difference to brake performance and the ease with which the caliper can be adjusted accurately.

The acceptable tolerances from the factories are pretty horrendous tbh.

[Gianpy]

I just came across this product.
The description is a bit lacking, however, there is an interesting and convincing demonstration video of it applied to a carbon fork and frame, which also appears quite sturdy.
The question is whether that disk actually corrects the flatness angle or just flattens it. 
Who's going to try it first? 

https://a.aliexpress.com/_EvEUoWm

[rcwsr]

I just came across this product.
The description is a bit lacking, however, there is an interesting and convincing demonstration video of it applied to a carbon fork and frame, which also appears quite sturdy.
The question is whether that disk actually corrects the flatness angle or just flattens it. 
Who's going to try it first? 

https://a.aliexpress.com/_EvEUoWm

I was just looking at these on aliexpress. tempted to try one.

[rcwsr]

I've took a punt and ordered one.

[rcwsr]

The tool seems to be pretty well made, the disc itself is very sturdy and flat. the axle adapters are nicely machined and everything tightens up well, no play. Other than using a metal file, this is my first attempt at facing the mounts to try and get rid of a noisy/vibrating front brake and I don't necessarily know the mount is misaligned in the first place. Certainly, putting the facing disk up against the mounts, they look pretty flat. But using the tool is pretty simple, the spring provides enough pressure that you can just turn it and it starts taking aluminium off.

[jonathanf2]

Get sandpaper and guess. 

[ChinerStevie]

Can this be used for carbon fork?