Namura pistons ok?

[Gerard De Ruyter (Twistandshout)]

Hey guys, anyone used 'namura' brand pistons in their bike?  ebay regularly brings them up for my '86 cr250, at half the price of wiseco ($62 compared with $112).  i presume namura uses less quality materials (even compared with wiseco!), but who knows, maybe they last ok?

[Lozza]

Yes and No.While there is nothing wrong with them the skirt tends to be a bit thinner,so you MUST keep a close eye on piston to bore clearence.A friend used them for a good while in a 80cc Superkart and never had a crack in the skirt.However Banshee nutters stay well clear of them due to several dome collapses and skirt fractures.With a rebore I would be tempted to try one, some have coated skirts which is a good thing.Notsure if they are as light as the Wiseco pro-lite which IIRC is available for that model CR.