HW30, older 50, 55 and of course 77 25mm piston diameter. Not sure if piston length would be suitable for what you needed them for though.
Just thinking to myself are the hw30 & 50 pistons 25mm if so are they too short to fit in one of my sleeved cylinders as I'm not really happy with using the ground down top sears (lgv piston fitted)
them there springer's are soooooo addictive
HW30, older 50, 55 and of course 77 25mm piston diameter. Not sure if piston length would be suitable for what you needed them for though.
You can reduce a Hw77/97 piston down from 26mm to 25mm as it's only .5mm off the OD
Was you planning on using this 25mm piston in a sleeved down Hw80 ?
Hw77+7