6 replies to this topic

[BoboGib]

I have a set of NOS "D" top pistons. The box is labeled +20 but I am trying to confirm this. Does anyone know, or have a standard 998 piston that they can measure accurately and let me know. I know what the bore size of the cylinder is so don't need this, I need the piston diameter.

 

Many thanks.

[BoboGib]

Is anyone able to help with this please???

[Vipernoir]

2.542" - measure the bottom of the skirt not the top of the piston.

[Dusky]

Ill go measure it, brb ;)

[Dusky]

Measured around 65mm with mine, measured with a normal ruler zo probably a bit off

[Dan]

Which way did you measure it? Pistons aren't round, and you need way closer accuracy!

[RossKnight]

2.5420" or 64.567mm