1 reply to this topic

[gomey68]

Hi,

Any one got any comparisons, recommendations or opinions on the big bore kits available for the 4RT? e.g, S3, HRC, etc.

Thanks,,,

[barfy]

Perhaps someone can confirm, but I was told be a good Over 40 national rider in the UK that you need to replace the head if you put on a 300cc cylinder because it doesn't clear the fuel properly.

I'd be interested in the answer because I'm looking at a 280 kit, but not sure what would be best.