Doesn't say a brand or anything. I prefer OEM over anything personally.
85 Tri-Zinger 60
85 ATC250SX
86 ATC250SX
87 ATC250SX
02 XR650L conversion
84 ATC 480R
uhhhhhhh.... 54mm is NOT standard for the 84-85 125m, 55mm is. 54mm is the standard size for the 86-87 125m.
here's a piston kit you could use to pep her up a bit
https://www.ebay.com/itm/NOS-PISTON-...5Z48v9&vxp=mtr
1985 ATC125M: Parts
1985 ATC200S: 84 200S Bottem end, 200x Head, 200x Carb, S&S Cycle Exhaust, Wiseco 10.25:1 Piston, Reground Cam with About 1mm more lift(unknown specs).
1988 TRX250X
1983 ATC200E: Total Pile.
"Bout Tree Fiddy" Master of Thy 22RE
Ive looked for oem i cant find one anywhere haha
Hm i wonder how much it would be for a place to bore the cylinder out . Ive never had it done before
My machine shop charged me $65 when I rebuilt my old 125m, but from what i've heard that's more than the usual machine shop.
1985 ATC125M: Parts
1985 ATC200S: 84 200S Bottem end, 200x Head, 200x Carb, S&S Cycle Exhaust, Wiseco 10.25:1 Piston, Reground Cam with About 1mm more lift(unknown specs).
1988 TRX250X
1983 ATC200E: Total Pile.
"Bout Tree Fiddy" Master of Thy 22RE
Ill have to check it out haha thank you
Your Welcome, just don't wait to long if you wanna buy that piston. They are quite rare so it might get bought out from under you. I snatched up the last one that was for sale on ebay the day it was posted.
1985 ATC125M: Parts
1985 ATC200S: 84 200S Bottem end, 200x Head, 200x Carb, S&S Cycle Exhaust, Wiseco 10.25:1 Piston, Reground Cam with About 1mm more lift(unknown specs).
1988 TRX250X
1983 ATC200E: Total Pile.
"Bout Tree Fiddy" Master of Thy 22RE