Wiseco PS125 and 125H marked pistons

[t20sl]

Anyone know what these fit?  These marks are on inside of dome.  PS 125  and 125H.  These are NOS with rings.  One is a single ring one a double

[thrownchain]

Not sure, but my book lists PS 121 thru 124 to be Hodaka pistons.

[Koen Cuypers]

Hi, probably it's a Wiseco piston for 125 SACHS engine.
PS125 is the standard bore (54.00mm).

Koen

[thrownchain]

Penton Sachs is a PS 168

[gooddirt]

Most likely a PS marking under the dome is cast and not a good piston for racing .Use the later forged  type in the orange and white box with a 168 #.

[thrownchain]

According to Paul Stannard, the old version PS 125 pistons are just not up to todays standards. The alloy mixtures back then weren't very good. He doesn't recommend using them, although I still can't tell you what model they fit.

[t20sl]

Just looking to identify in order to sell (inexpensive).  May not be up to today stds but they were raced in the day and not many restored bikes really get run hard do they?  Figure 40 bucks with rings is reasonable.

[thrownchain]

As soon as I find out the model they fit, I will let you know.

[gooddirt]

You have been WARNED ! DO NOT ! use in a race bike. The Whole North West Penton/KTM race team says not to use them!

[thrownchain]

Ok, bad news. Paul Stannerd couldn't I.D. these, so he got ahold of a friend of his at Wiseco, and he couldn't find a listing for them either. Back to square one.