MTB Rotor Size Comparison! Do Bigger Rotors Stop Better?

MTB Rotor Size Comparison! Do Bigger Rotors Stop Better?

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[FATTY]

Larger Rotors do make a difference i tested this myself on a cheap store bought bike and had the rotors laying around for a new build and it may be a small difference but it could be the differcence between life or death

[samthecat]

Great video. I've done this on other bikes. I just went from 160/160 FR to 203/180 and upgraded to hydraulic line pull calipers from cable. Feels like a huge difference but good to see the actual proof. "Can't stop won't stop" are not words to live by.

[dreadsanddirt]

I run gigantic rotors (220/203) and the hand effort required to control speed is DRASTICALLY less. I play guitar for a living so anything I can do to alleviate sore hands from riding is a welcome change.

[serpadu]

What about a cheap (RT54) vs intermediate (RT70) vs expensive (RT905) test? Same bike, same calipers, same diameter. Ideally on a long paved descent, to see how they handle the heat, if the cheapest warps... I've used randomly in different bikes various rotor levels, but can't really judge if there's a braking performance difference between a slx and a xtr rotor. It is probably very difficult to differentiate them in a blind test even agains the cheaper ones, like RT26.

[harrygrimley]

Don't forget, if you ate or drank anything during the test you change the weight and thus momentum. Peeing will change it also.

[KNGER]

I have a heavy ebike and I'm over 200lbs myself. Thank you for this video you talked me into it

[bradley]

I have 220 front and rear on 27.5 and honestly, I think I'm going to downsize to 200. I'm fairly lightweight and I feel like I have better modulation with smaller rotors.

[jamesdiamond]

I put 203mm rotors front and rear on my lectric e bike with tektro aries calipers metallic pads gotta say it did the trick
I am Towing a 95lb black lab in a trailer 😂😅🤘👍🎥

[phil]

Just a newbie in mtbiking.

Let's say he has only 180 and 203...

How should should you modulate brakes in steep rocky corners and what rotor setup shoud you use?

A) 180F/203R - front modulation
B) 203F/180R - front modulation
C) 180F/203R - rear modulation
D) 203F/180R - rear modulation

[KillerArcadeGames]

That E-Bike is far too much fun! Its actually perfect if you want someone to help film, I didn't complain once about frequently going up and down a parking garage...I also didn't pedal! haha. Cobra Kyle now has 10, 000 subs!! Congratulations!

[fishrideandski]

i was thinking about getting new bigger rotors so this should be useful

[iangustafsson]

Neat comparison Kyle; another amazing video!

[jasonbrown]

i skipped to the results so i didnt watch the whole thing but from a leverage stand point, it should most definitely give you more stopping power. honestly i always thought this was more about dealing with heat dissipation, but that may be an added benefit?

[shawnalove]

I didn't watch till the end because it seemed flawed, in that he didn't mention bedding any of the new brake pads. Unless of course it was s test to see how brand new, unbedded pads and discs stop compared to each other.

[dynamitedanny]

You're telling me this free content was performed by a guy without a PHD in Physics outside of a multi million dollar laboratory? CLICKBAIT

[harrygrimley]

This was a good informative video. Thank you. I wondered.

[komoonkh]

Imagine those metallic pads when they are bedded in. Hah.

[billr]

What happens when you put metallic pads on resin-only disks? Seems like this would be the cheapest upgrade.

[JaredRMorgan]

Time to see if I know what I'm talking about or if I'm full of garbage! LMAO. Legit excited for the result.

[Semprefi]

I’d be interested to see the results of a test with the 180/160 rotors and metallic pads so we could know which alteration was responsible for the better braking results the pads or bigger rotors or both