How to install Shimano Disc Brakes

We're unboxing and installing the new Shimano 12-speed 4-piston M8120 Hydraulic disc brakes and going over how to set up the brakes. 2-piston Shimano SL-M81000 XT Disc Brakes installation is covered as well.

[FlyWingsuit]

This video is what should’ve been on a QR code in the box. Absolutely no instructions on how to attach the hose to the lever, so this really helped. Thanks. 👍

[frogslips]

That was great, exactly what i needed for my new Deore brakes that arrived today and i had no idea how to shorten the hose. Now i do. Thank you.

[xjmzrq]

Thank you for this tutorial. I’m a complete newbie and was able to install a new rear disc brake without any issues thanks to your information.

[charlesarvey]

WOW,
Thanks guys as I have never shortened a hose either; like a lot of us here on this post. Thanks for the detail and straight forward directions. And thanks for speaking in a tone that is understandable!! So many folks on YouTube ramble and mumble like they are high. Also will be nice to use the Park hose cutters that came with my kit purchase many years ago...lol

[knewal]

Excellent guide, showing us what readily available tools to use and the trick for every situation.

[donl]

Thanks! Really. You get right to the point; you're an anomaly for most don't

[SansibarRacing]

Thanks, super useful tutorial. Love the comment about watching the bubbles coming out :)

[Jander]

Super helpful! Also thanks for not adding fluff to the video

[leebarnes]

Great video just what I needed for my 2020 brakes that were not connected to the lever... now I'm ready to install thx man

[kevinborovsky]

Great informative video I like the trick with pushing the pistons out before sizing the hose. Cheers

[VeloceGav]

Thank you for putting this together. Good quality information. It helped.

[-TRIPLE_A-]

Nice video, helpful and clear. Cheers from London, UK.

[SnappyScience]

This is perfect. So many great tips. Worked first time.

[cxy]

This tut is ace, great video man, keep going 😁

[motorex]

Maan! That is helpful! Keep it up! Thanks!

[dr]

What a great teaching video! Is the piston spreading no-bleed trick the same for 4 piston calipers? I noticed you said to use a block in the case of 4 piston.

[dawbool]

Thanks a lot. Still ich am wondering why no olive is seen at the open end of the hose before tightening it into the lever. Is the olive already contained within the opening of the lever interfacing the hose ?

[dannyvisitacion]

I really like your video and I learned a lot

[GhettoSuguru]

Can you swap so that the right lever is the front brake and the left the rear brake

[Anykine]

@ 8:50 are you explaining a separate method for the newer j-fit brakes? Or is it in addition to what you were just explaining? Is an insert and olive still needed for the newer “j-fit” brakes?