S&S CYCLE 0912-0640 106-3709A Replacement Ring Set for S&S Pistons - Replacement Piston Rings - 3.927" - Standard CVO Spring rates have been chosen

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

pushrods and lifters

** Our Digital Gauge Clamp will fit with the new KOSO D2 Gauge for all models including baggers

Sealed unit is complete with connector for plug and play installation behind the stock taillight

Designed for the taller rider who needs more room to move back

S&S CYCLE 0912-0640 106-3709A Replacement Ring Set for S&S Pistons - Replacement Piston Rings - 3.927" - Standard CVO Spring rates have been chosenNote: 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