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OS front rotor. 270MM vs 280MM ?


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Im ordering an oversize front rotor for my 09 CRF 250R and I was wondering the difference between 270 and 280mm rotors. I would think the 280mm would stop better, but the factory teams seem to all use the 270mm front rotor. So what is better 🙂

Examples: Geico uses a 270mm CRF Stuff rotor, and I went to the MotoConcepts facility and measured their Gold FREN rotors and they were 10 9/16" (269mm) so they also use a 270mm.

Edited by Chevy74
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I run a 280 on my 250F and I really like it. It is by far the strongest front brake I have every had. It is actually pretty progressive and not too touchy. Regardless the size, an OS front rotor makes a huge difference.

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