S&S CYCLE 0912-0640 106-3709A Replacement Ring Set for S&S Pistons - Replacement Piston Rings - 3.927" - Standard CVO Matching driver backrests and trunk-mounted

Matching driver backrests and trunk-mounted passenger backrest for RT model available separately

Spring rates have been chosen to reduce front-end dive during braking

Built-in stinger cone directs air smoothly into the bore of the carburetor or EFI throttle body and reduces turbulence and increases flow

Designed for big bore applications

S&S CYCLE 0912-0640 106-3709A Replacement Ring Set for S&S Pistons - Replacement Piston Rings - 3.927" - Standard CVO Matching driver backrests and trunk-mountedNote: Fits S&S Pistons only Features Replacement ring sets for S&S pistons only Rings come as sets for two pistons Made in the USA Specs Product Name Piston Ring Type Replacement Bore Size 3. 927" Piston Size Standard Units Set Riding Style Street