Wiesco 120 BB piston = race gas ?

Anyone running the wiseco 120 piston in there XR 100s ? Can you get away without useing race gas? This would be for my sons bike - don't really want to have to bring dif. gas for all the bikes. What happens if you don't run race gas - runs bad or will it hurt the motor?

If I can't run pump gas with the Wiseco - is there another brand that will allow me to run pump gas? Wiseco seems to be the cheepest way to go??

Thanks dp :naughty:

Sorry guys - wrong forum :naughty:

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