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HOTCAMS 1139-2 for CRF250-04

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hello , I'm from Italy . Just one question : does somebody know why the hotcams 1139-2 for CRF250R can be fitted only on 2008-2009 and why others models of cams can be fitted on 2004-2009 models ?

Thanks you in advance for the support .

Loris

:lol:

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hello this is what HOT-CAMS replied to me , anyway thanks...... :

Physically the 1139-2 cam will FIT into the 2007 models, however it was designed specifically for the 2008-2009 models which have different port volume and compression ratio. Theoretically you could use it in a 2007 model, but you will more than likely get better results from our cams designed for the earlier years.

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