MC21 rotor upgrade?

**Tue Jan 06, 2015 2:56 am » Post: #1 » Download Post**

Does anyone know if there is a front brake rotor with a diameter of 310 or 320 mm from another bike that's bolts up to a stock MC21 hub?

Thanks
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**Tue Jan 06, 2015 2:04 pm » Post: #2 » Download Post**

If you really need bigger discs, in my opinion you would be better off going for 296mm, as you will find a lot of original Honda discs that bolt straight up to the NSR wheel, have the correct swept area, and the correct offset.
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Andy.
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**Tue Jan 06, 2015 4:54 pm » Post: #3 » Download Post**

Hi Andy,sorry, I should have explained my request. I looking at doing a fork upgrade and the Forks are setup for a 310mm rotor. Any ideas on what might fit?
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Last edited by scb67 on Tue Jan 06, 2015 7:16 pm; edited 1 time in total

**Tue Jan 06, 2015 6:13 pm » Post: #4 » Download Post**

ISR make a 320mm disc that may work.
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**Tue Jan 06, 2015 8:42 pm » Post: #5 » Download Post**

Stealth do them, think they will also do new larger rotors for your oem inners:

http://www.stealthproducts.co.uk/

**Thu Jan 15, 2015 11:29 pm » Post: #6 » Download Post**

the nsr takes the same rim as the cbr250rr, which has the same stud pattern as the cbr900, vtr1000f, and a few others. I have those disks on mine but from memory I think they are 290mm

**Thu Jan 15, 2015 11:54 pm » Post: #7 » Download Post**

Pinkee wrote:
the nsr takes the same rim as the cbr250rr, which has the same stud pattern as the cbr900, vtr1000f, and a few others. I have those disks on mine but from memory I think they are 290mm

297mm

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Andy.
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**Fri Jan 16, 2015 2:32 am » Post: #8 » Download Post**

Thanks guys....looks like he ISR rotors that Andy mentioned would be my best bet! Thanks for all the advise.
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**Sat Jan 17, 2015 12:28 am » Post: #9 » Download Post**

Rc30 should fit and is 310 I think