[tylerw2312]

Hello does anyone know what the bore size and piston size for a 1989 rm 125 2stroke is?
I have looked all over the internet and can’t find a damn thing I have one that needs a rebuild and don’t know quite what I need

 

[91LT250R]

54.0mm bore and 54.0 stroke per Wiseco.

Product Search Engine For All Products - Wiseco Piston Inc.

www.wiseco.com

 

[tylerw2312]

54.0mm bore and 54.0 stroke per Wiseco.

Product Search Engine For All Products - Wiseco Piston Inc.

www.wiseco.com

 

[tylerw2312]

Okay so I pulled the stock piston and it has 54.94 and I’ve looked online would a 54.00 piston fit? and I’m guessing the .94 would come from the piston ring right ?