MOFANS 90cc 52MM Bore Engine Piston Cylinder Gasket Top End Kit Fit for Compatible with Polaris Sportsman 90 01-06 Bombardier BRP Can-Am DS90 02-06 Polaris Predator 90 03-06

I put this on my 2004 polaris ds90cc quad. The original was a 48mm bore. This is 52mm bore so I have a bit more power then before. I haven't noticed any issues with the carburetor. Seems to be a good item for the price.