Same weight as stock pistons. They use a three piece oil ring, and are avilable in .50 and 1.00 oversize. They are a thing of beauty. Look at my engine restpration thread in the restorations section for pics.
davomoto
honda305.com Forum
Vintage Honda Owners, Restorers, Riders and Admirers
Latest Registry Entry
1965 Honda CP77 — Ulsan Metro City, Rep. Korea
Restored with original parts — Owner: J. Doe