GPM pistons - are they ok?

[Markus]

I'm working on an SX150 engine with a quite new GPM piston. I've seen pictures of cracked GPM 66mm pistons on the MB "Gallery of horrors". - Any expierience with the 150 pistons?

[bristolmod]

I have used them in the past. They're OK but certainly not brilliant.

I'd be inclined to get a "Mahle" from Scooter Restorations at around £30 and rebore the cylinder to be sure

Chris

[Special X]

They used to be referred to as GriPMore back in the day due to there propensity for seizing up. As BM sayid the Mahle are a much better bet.

[al-super3]

IMO cut it in half and use as an ash tray lol