Hello all I 'm trying to find any info on using a rdx220 piston in a ty175. The rdx220 piston has the right size wrist pin 16mm and with bore sizes starting at 69mm. My liner is already at 68mm on my stock engine and I would like to keep using it as the porting is to my liking, but would like to rebore to 70mm and make a 200 out of it. So anyone used the rdx220 piston and what needs to be done with it in order to make it work? Thanks

do you mean a kdx220 piston? I have a feeling the kdx220 piston works with the Ty175 motor. Haven't heard of an rdx220

I don't think you will be able to use the standard liner for a 70mm bore

Yes it's the kdx220 piston. Sorry about that .