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Wondering if anyone has the Wiseco piston application chart for the old green envelope piston ring number 1013RS I have on-hand.
I am looking for the size of the ring primarily and engine application after.
These will be in the Foreign section.

Ultimately, I need a ring to fit a 50.10 mm Sirio piston I have for my ATK/Atomik Reed 100 cc engine.
Bore size as I recall was 50.18 mm at the top ridge.

I'd take 2 if anyone has them, but lets get the application of the above mentioned ring first please.

Thank You,

Mark L.  /  SWNY

I thought it was for 50.8 bore range, but incorrect.

The 1012 part number is for the Komet pistons, not 1013.

You should have no problem collapsing that L ring and take a measurement to find out what bore range it fits.

O K, no takers on that part number.....

How about this one? (1040 has been identified as LMR)
Wiseco 1040P and 1050P piston kits/

my old Wiseco #12 kart catalog doesn't list them, So I suspect it may be old Euro motocross dirt bike applications.

Since the number is in the 1000 series, I was hoping it was kart, but it may not be.

Thanks,

Mark  ///    SWNY

(05-21-2023, 06:16 PM)Terry Bentley Wrote: [ -> ]I thought it was for 50.8 bore range, but incorrect.

The 1012 part number is for the Komet pistons, not 1013.

You should have no problem collapsing that L ring and take a measurement to find out what bore range it fits.

Rob Voska has identified the 1013 ring as Komet A ,  50.8mm Terry.

Thanks Terry.

Mark L./SWNY

bump looking to buy;

I need a L-ring to fit a 50.10 mm Sirio piston I have for my ATK/Atomik Reed 100 cc engine.
Bore size as I recall was 50.18 mm at the top ridge.

I'd take 2 if anyone has them, PM me if you can help out.
Thanks,