It seems xtech have upgraded their seal inside the calipers. I took one of mine apart to put some harder grade ones in and found that they've put a big beefier one in there! So I put I all back together and bled the caliper and all is well.
Yeah. The black one is most likely NBR type material which is most common. The red-ish one is FPM type which has more temperature resistance and supposedly better durability. I don't know if this is the right type of material for this specific application, but so far the caliper is working and there are no signs of any leaks.
Yeah, my brand new brakes were no good out of the box, so they hit the trash can! I wasn't waisting time buying anything to fix them with! They should have worked from the start!
Thank youm very much for this content, its hard to find, and you made it out clear enough to anyone understand ;)
Greetings from brazil, God Bless you
If mine fails, I'll simply buy another 20 dollar caliper before doing all that but thanks for showing us the internals.
awesome video ! (thumb up for improvised bleeding kit with CNC ^^)
12:00 you can add grease inside the dust-cover to minimize dust entry
It seems xtech have upgraded their seal inside the calipers. I took one of mine apart to put some harder grade ones in and found that they've put a big beefier one in there! So I put I all back together and bled the caliper and all is well.
Thanks for this extra deep dive into this. That new O-Ring looks to be of a different and much more substantial material?
Yeah. The black one is most likely NBR type material which is most common. The red-ish one is FPM type which has more temperature resistance and supposedly better durability. I don't know if this is the right type of material for this specific application, but so far the caliper is working and there are no signs of any leaks.
Great video I have these brakes on my diy ebike and the brakes stopped working. I am going to try your diy fix and see if I can save them. Thank you
How about putting 2 o-rings on there just to be safe. It looks like it would fit.
is there a replacement of piston
Yeah, my brand new brakes were no good out of the box, so they hit the trash can! I wasn't waisting time buying anything to fix them with! They should have worked from the start!
Demais irmão 🙏🏼🙏🏼
Can you also do a video for leaks on brakepad piston of xtech.
you'll also need to add the words "piston rebuild repair" in the title or tags so others can find your video.