How to fix your XTech Caliper
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- čas přidán 22. 02. 2022
- As we many FATMAX USERS are using this caliper I decided to make this video and hope to help many riders that go through the same issue as it happened to me.
Hope you like it and please help by subscribing to my channel! This helps so I can work in better videos for you guys!
Hydraulic Disc Brake Oil Mineral Bleed Kit:
www.amazon.com/dp/B08LSHY28F?...
Mineral Oil:
www.amazon.com/dp/B07XDSFN6S?... - Sport
![[MTB maintenance] Oil change attempt on a cable-pull hydraulic brake caliper](http://i.ytimg.com/vi/9kZvbEaTmTk/mqdefault.jpg)
I mean replacing the brake fluid every so often is good and often needed especially with these small sealed units as all hydraulic brakes loose oil over time by design as the same oil used for pressure lubricates the piston o-rings and in a full hydraulic system you have a large reservoir up on the break lever so the loss is never noticed but in these sealed systems they have a limited amount of oil so usage loss adds up, but also understanding how these calipers work is also important because the designers though of the oil loss and designed an adjustment screw for that very purpose, the problem is people do not understand these brakes and time and time again i see people using the cable adjuster to tighten the cable as the pads wear down or as oil is lost which leads to the little lever arm loosing travel the more you use the cable adjuster until you have so little your brakes stop working, and here is the thing on these XTeck calipers you are not supposed to use the cable adjuster to adjust for oil loss or pad wear and if you are then you are doing it wrong, the cable adjuster is only there to be used to take up any initial slack in the cable.
How you are actually supposed to adjust these brakes for oil loss and pad wear is by using the little grub screw that is part of the main cylinder piston, if you look at the little arm that the cable bolts to you will see the cylinder piston sticking out and going through the arm and this is the adjustment grub screw, and you are supposed to use a small Allen key to turn this clockwise and as you turn that it moves the piston in pushing more oil into the pad pistons accounting for oil loss and also pushing the pads closer to the rotor to account for pad wear, using the intended grub screw means that the little arm always keeps the same travel distance and you will never bottom out the little lever no mater how warn the pads are.
Thank you for detailed explanation! Lots of people have issues with this calipers. I do change oil or add what it need to make them work good again, every 6 month or a year depending on scooters usage and once is done no need further adjustments aside of pads replacement. Some calipers get damaged and start to leak oil and as they are cheap people just replace.
Thanks for the insight!
Thank you so much for making this video! I've been looking for one for agggggeeeees!
Me too can’t find one that’s done in English
U were very much help ..thanks much..got my sub!!
Thank you for this video, thats just I needed
just ran into this problem with an emove cruiser. thank you so much for the tutorial.
I’m glad jejeje. Is an easy fix. With this fix your caliper becomes better than as it New because you use best to fix.
watching this because of my emove cruiser as well
Great video, although if you are doing this make sure not to touch your brake pads when you have oil on your hands, as it will contaminate them and you will lose stopping power.
When I didn’t know how rotors and caliper get in road, I thought as you. But reality disk gets nasty almost as the wheel so little oil it’s nothing compare to what rotor gets expose aside a little oil on it gets smoke the first time the brake gets pressed ;)
Great videos bro. Thank you so much.
Thank you for the video IT is very helpful 😊🥰👋👍🙏
Informative...thanx
Nice video. One note is your link for the bleed kit no longer works, but it was easy enough to search amazon for a current one.
Thank you!
Thank you, first helpful video...among other usless ones...
thank you for your video; she help me :) :)
Thankn bro
Not always but often the issue is actually that the master cylinder piston seal leaks because the dust seal is useless and the downward design of the master cylinder bore collects and retains dirt which ruins the seal which needs to be perfect. Service the item all you like but the pressure release issue returns (loss of lever feel) after a few hours of use again, and again..
The bore of the master cyl is often ok which means a master cylinder seal replacement and rebuild would suffice but i can not find a worthy replacement seal online so please let me know if you find the correct item so i can buy a few. A piston and seal replacement would be preferable but just finding a seal is a trick.. 11mm bore, piston shaft dia is 5mm. Thanks
So does it mean that all XTech HB 100 will have this issue for sure?
No one could ever say the seal will leak on every caliper. But the design allows dirt and grit to be held in the bore rather than falling out naturally so its gauranteed that the seals will be more likely to be damaged prematurely compared to a better design. If the dust cover sealed well and was made of better rubber then this would stop the dirt etc falling in.
@@claytonbenes7774 I see, that sucks. I was hyped to buy this one to a small jetson bolt pro bike, but now I'll have to look for another kind of brake. Do you have any recomendations on a brake this size that has a better design and it is more reliable, where this issue doesn't happen? (and preferably any other issues)
I am not familiar with other options. My sons kaabo scooter has these so we just do the seal whenever it needs it. I found them on ali for a few bucks. The time it takes is not for impatient people but we dont mind some shed time so all good. I just use any hydraulic oil so its cheap.
Question: where did you got the adapter? I meant the one between caliper and the sharkset rear suspension.
Thank you for your purchase. Your adapter will be ship in the morning :)
I tried the bleeding procedure but it didn't change anything. What does it mean?
While i like these brakes on my eagle its annoying af to have to bleed brakes i got like a month ago since new one of them felt like it had a little air trapped in it.
Had a lot like that even some had to replace because they simply come defected from factory
@@esnkaz amazon is sending me a new set free so hopefully its bleed right and i can just swap out my rear one and bleed the old one later on
Cual es el kit que usas para hacer el cambio de aceite y el mldelo de la pastilla muchas gracias
En el video muestro la que use. Barato en Amazon con todo y queda en casi la mayoría de patinetas.
Hi, how long did it last until you had to refill the oil again?
Since I made this video and still good.
Seems odd to me you have to replace the oil in just 3 months as it happened to me. The front brake stopped breaking like it did to you and I think I might just go back to my mechanical brakes also because I haven't noticed any difference in braking power. I haven't noticed any oil leaks.
Hola. Tengo una pregunta. Cuanta cantidad: Mililitros Cúbicos de Aceite Mineral admite el interior de la pinza? Para saber cual es la cantidad justa y exacta de relleno de líquido del circuito hidráulico, para no rellenar de más o de menos. Muchas Gracias por la atención. Saludos desde España !
Sigue los pasos a como muestra el video. No hay una cantidad exacta. A como puede ser de acuerdo a cuanto desgasto tengan las pastillas de la caliper. Recuerda que tienes que usar un tanto de aceite para limpiar el viejo.
Hi sorry to message you on CZcams. Was just curious are you based in NY? I'm in the process of upgrading my Max and might want to inquire about your assembly services if you are in the city.
Sorry my late reply. Hope you had found the way how to upgrade. In any case if you are still looking. All parts for full assembly from suspensions to power, controllers and more are here in NY :) find me on fb esnkaz
I’d like to get the HB100 calibers for my eBike but I have 180mm rotors. Will I need an adaptor?
This HB-100 calipers are original for bikes and come with the adapter to install on big rotors. I made the first adapters to install on scooters back in 2020 and there after many others started to make adapters according to their scooters. The caliper adapter (bracket) you can check which one fits as they come for mounting on the front and rear and will tell from 140mm to 160mm and like that going up.
Thanks! @@esnkaz
i have bought this and already having issues.the piston isnt going back in again and one side is sticking out while the other one isnt moving.ive tried rubbing oil on it nuy only car oil,i havent even used it yet!!
Sorry the late reply. If the piston isn’t going back is possibly a faulty part. Return it get a new one.
I wonder how good it brakes. You just contaminated the brake pads with oily fingers.
Lol 😆 have you noticed what brakes are exposed too? A minimum touch and you are worry 😂 I check and align brakes every 3 month. My scooters are performance scooters so you can imagine…
How do you fix the caliper if it is bleeding?
If leaking from the piston you will need to replace the seals which are find to get. If leaking I’ll suggest to replace it.
How much does the kit cost? New calliper from China is cheap, just too long of a wait time
I got it from Amazon it was $23 it comes with everything needed for service the caliper. I used it for 5 refills on different scooters...
@@esnkaz thank you, actually found one on Amazon as well. Different brand but same looking thing. Comes in 2 days, so hopefully I won't break anything!!
@@esnkaz what should i write in amazon to get the kit ?
If you haven't replaced the piston seal, you haven't repaired the caliper. The brake fluid will leak again.
Hey Jaricki thank you for the input! Yes you are right. Please text me on Facebook Esnkaz Ninebot max evolution USA :)
These shitty calipers has a use period of 3 months, it leaks, i have boight at least 6 pairs for my electric scooter. No more, going full mechanical brakes from now on. I think they are pupously making these calipets leak so users would have to exchange them often.
Have been using for over a year and no problems. I weight 174lbs. As more stress is put to breaks they get damaged.
You just only breed the break oil . Not fix it. Because it have a low quality and old oil break fluid.
Most require fixing. (Replacement of grommets on piston side) others just add a bit of oil due to usage or because pads are low.
Is it just me or is anyone else watching this losing their mind over the seal on the actuating piston not being seated properly...? lol
He's gonna have the same problem in a couple of weeks?
That’s another issue with this calipers and in that case is just best to replace them. Once the piston seal gets damage even if replacing it doesn’t last long to the problem to come back.
@@esnkaz absolutely 100% agree, they are just so cheap.
It's a terrible design _BUT_ they are priced accordingly, so... there's that.
If you're gonna ride around, between 5 - 20mp/h max AND you're somewhat regular about inspecting & maintaining them, these callipers may last you a year or two, maybe even more & I think in terms of economy or "bang for buck;" that's reasonable enough? For me personally though; with most of my riding being at top speed, it took me til my 3rd set of these to realise they aren't suitable for my application.
Under hard or heavy braking, that piston seal would get pinched between the micro-adjuster thread & the actuating arm.
Over time, the seal gets damaged, whether it would tear or split along the seam, then it loses fluid, thus losing hydraulic pressure, which ends in much the same result as you see here in this video.
If I could find some replacement seals I have 4 pairs of these that I could bring back to life but I'm having trouble sourcing them?
I've since purchased a set of fully hydraulic Nutt A5-D & hope to fit them on the weekend if I have time.
I'd replace the set for $35 rather than buying $15 pads, a $20 kit, $10 in oil, whichever bits I'm going to need, and a fancy vise adapter.
4 pads cost 4.61€ in AliExpress, and oil 4.97€ for 60ml, kit 16.87€ total 26.45€. Lets assume you use scooter for 4 years its 4 maintaneces 35*4=140 total.