Single Cyl Piston Ring Set 105.61 mm Bore 4.158

The Single Cyl Piston Ring Set 105.61 mm Bore 4.158 from Wiseco is designed for high-performance engine builders and machine shops looking for precision-fit piston ring solutions for single-cylinder applications. This file-fit ring set addresses the need for tight bore tolerances in custom engines, racing builds, and specialty powersports applications where standard off-the-shelf rings may not suffice.

Manufactured from premium steel with a gas nitride surface treatment, this piston ring set offers superior wear resistance and durability. The GF-style design features a cross-section of 0.047 inch x 0.047 inch, and the file-fit construction allows builders to match rings to their specific cylinder dimensions for optimal blowby control and compression retention. Standard tension specifications ensure consistent radial pressure against the cylinder wall while minimizing friction losses.

Engine rebuilders, machine shops, and performance enthusiasts will find this single-cylinder ring set invaluable when building or restoring high-revving powerplants that demand precision components. Proper installation requires ring gap sizing and bore honing to achieve the desired fit, ensuring reliable performance in demanding environments.