ZRace XG calipers- how do you bleed?

[00Garza]

On AliEx, you can get a pair of Shimano GRX 400 calipers for slightly more than a pair of ZRace XG calipers. Way better performance and easier to adjust overall.

https://www.aliexpress.us/item/3256805058833940.html

Nice. I might replace my Ltwoo calipers with this. Rear brake has been giving me trouble.

[rtuk]

Clean the rotors with alcohol or acetone. Torch them for a few seconds with a flame to burn off the mineral oil. Sand them down with a fine grit sound paper to rough up the surface.

For the pads you can just torch them and sand them and they should be useable again.

Re torching the rotors & pads - would a heat gun provide a similar benefit?

I'm guessing no - as you need the flame to consume the organics in the mineral oil, but as I dont have a torch / do have a decent heat gun - it'd be useful to be sure.

[Ludo]

Brake cleaner from at auto store should do the trick

[jonathanf2]

Re torching the rotors & pads - would a heat gun provide a similar benefit?

I'm guessing no - as you need the flame to consume the organics in the mineral oil, but as I dont have a torch / do have a decent heat gun - it'd be useful to be sure.

I have a gas stove, I just use that. Once you see slight smoke, the mineral oil should be cooked.

[Takiyaki]

Man, I did everything.... properly rebled, changed pads, changed rotor, front brake is still way weaker than the rear. I think the front caliper is messed up. Maybe I broke it. Either way I wouldn't recommend these. What are the cheapest Shimano hydro road/gravel calipers? Are these legit?

https://www.aliexpress.us/item/3256807394787422.html?spm=a2g0o.productlist.main.1.44aemPrnmPrn2H&algo_pvid=2f500788-8696-4ed1-ad3d-b505376f14dd&algo_exp_id=2f500788-8696-4ed1-ad3d-b505376f14dd-0&pdp_npi=4%40dis%21USD%2192.77%2174.22%21%21%21651.50%21521.20%21%402101e58317270199026064614e2c11%2112000041398572210%21sea%21US%212031565588%21X&curPageLogUid=9tzYMNxeYRYV&utparam-url=scene%3Asearch%7Cquery_from%3A