Best Budget MTB Brake Upgrade | Shimano BR MT-420 Upgrade. Better Rotors and Brake Pads

[@mattleonard5268]

I love the performance of these brakes for the price. I had mt420’s with 203mm/203mm rotors on a Kona stinky park bike and they were awesome.

[@DanielEskenazi]

Awesome video, I am upgrading my ebike from 203 to 220 and this video helped a lot.

[@mikemtbs]

Awesome! Super happy it helped!!

[@kruizes]

It looks like you took off SM-RT66 rotors which are already compatible with metallic pads. Couldn’t you have just swapped pads?

[@johnschindhelm1940]

Nice upgrade!

[@mikemtbs]

Thanks John, it's made a big difference.

[@Crf19]

you try with H03 pads ?

[@mikemtbs]

I did not, maybe in the future though. The ones I'm using now work very well for me.

[@michalvalicek]

read the manual DM-MBBR001-04 page 8 You must not use the Disc brake mount adapter in combination with the SM-RT86. It is strictly prohibited.

[@mikemtbs]

Thanks for the heads up. Everyone look at this guy's post

[@mikemtbs]

I researched into this. With some centerlock to 6 bolt rotors you are unable to use the adapter as the metal center flange is milled too thick so the bolts won't fully tighten to the rotor. Thanks for bringing it up for clarification. Also in some applications the rotor is too close to the fork leg and rubbing may occur between the brake caliper adapter and the rotor. More info if your interested on reddit forums.

[@devourermastikator]

I can't find any ice tech rotors recommended for this brakes in the Shimano page. I have a ebike with these brakes, resin pads and 203 rotors SM RT30L and RT EM300 L centerlock with magnet for the sensor from my Bosch motor. Can i put any ice tech rotors or not ? Thanks and big up for the video !

[@mikemtbs]

I'm sorry I'm not sure for the centerlock rotors. You might be able to find a pdf online or maybe a local bike shop could help

[@mikemtbs]

bike.shimano.com/en-EU/service-upgradeparts.html try using this website

[@AmvC]

Ehm ... you advised to clean the calipers/pistons in the caliper with oil. And you didnt advise to clean the calipers and the pistons with a brake cleaner afterwards. I'd correct that part if i were you. The oil part is completely unneccessary and life/limb/bone-dangerous. Just use a proper, inexpensive brake cleaner.

[@AmvC]

6:24

[@ArdianSutarjan]

back sound is to loud

[@mikemtbs]

Thanks for letting me know.

[@AwesomeAngryBiker]

Please for the love of God, leave out the music, totally ruins and makes it unwatchable