Wiseco Pistons Semi-Keystone Ring Set Bore

Wiseco Semi-Keystone piston rings are engine piston ring sets built for powersports and performance engines. They are designed for durability, longevity and strong ring seal. Each ring set is matched to a specific Wiseco piston bore size, so you can choose the one that fits your build.

Key Features:

• Tapered compression ring: a 7 degree taper helps seal the ring against the cylinder wall, with less than 1 percent blowby.
• High-temperature alloys: built for strength, longer life and better heat transfer.
• Wide bore compatibility: suited to cast iron, nickel ceramic plated (Nikasil), boron composite and electrofusion bores.
• Made for Wiseco pistons: these rings are made to work with Wiseco pistons only. They are not for OE or other brands of piston.
• Chrome bores: not for use in chrome bores unless the listing says otherwise.

Choose the bore size that matches your Wiseco piston for a dependable ring seal and solid, consistent performance.