Ok so I’m rebuild a 1985 trx125 with the lay down engine it’s standard bore and I can’t find a piston really don’t want to bore it out.I looked for a atc 125 piston and it’s a 54.00mm std bore and Atv is 55.00mm std. So could I order a atc 125 piston 4 oversize which is 55.00mm?? I’m kinda lost….