I had 180 front disc on my scott spark 100/100 and now I changed wheels so I have to buy discs/rotors and thinking to put 160 on the front. Brakes are shimano xt. I usually ride XCM but sometimes also XCO. Does anyone moved from 180 to 160 and how it went?

What fork? Sounds like garbage ideology to me. Could be relatively easy to search other bikes set with the same fork and cross check rotors specified. My gut says keep 180.

What fork is it? If it clears/fits a 180 and you’re already running one I don’t see the issue? If you’ve gotta just save the weight be prepared to give up stopping power. I’ve done this myself and quickly went back to 180, I even run 180 in the back now on my XCM build. If you don’t live or race i…

Stick with 180 mm. They offer more stopping power (due to the larger lever), have a larger heat capacity and the weight penalty is completely negligible. [image] blind76: I was told that 180 is too harsh for the fork… That doesn’t sound right. All quality mountain bike forks (with the possib…

Like everyone above, I’d have to recommend going to a 180mm. I raced XCO for years as a weightweenie and had 160 - now on 180 and its so much better.

I accidently ended up with 160mm discs at the front and decided to keep them. I noticed I am missing the adaptors to late and had to put on the spare 160mm disc to the front. And they are lightweight Storm SL models. I am using grownup brakes (4-pot Magura MT7) and 65kg so getting good braking powe…

There’s actually good arguments for putting the largest rotor in the back! Don’t knock it before you read it :wink: https://enduro-mtb.com/en/rotor-size-myth/

needing a larger rotor in the back because its overheating is a sign of bad riding habits. the front brake is where the stopping power is at, despite what this article (filled with anecdotal bro science?) says. Although it is true that the rear brake is often dragged a lot to modulate speed, so ok,…

You’ve overlooked all of the nuances in the article I’m afraid. For the example the OP is asking about I don’t think the bigger / even bigger rotor choice is pertinent however but the setup, on an enduro bike, might actually make sense if you consider their points. Where’s the bro-science?

MTB front disc 180 or 160?

Equipment

Dave October 29, 2021, 5:48pm 11

I’ve run 180mm on all of my xc bikes and it’s spot on. I like to attack the downhills so stopping is a priority.

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MTB front disc 180 or 160?

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