+.010in. Pistons with 11.5:1 Compression Ratio. Fits 121ci CVO Touring 2023up - CP Carrillo Pistons

Features & Benefits:-

The ring pack has been moved down 0.080″ to prevent the breakage issues the Stock HD cast pistons are having.

Bore = 4.085″

Stroke = 4.625″

Fully CNC machined

Balanced to /- 1 gram

Double forced pin oilers

Forged from high strength 2618 alloy

Designed for maximum performance, horsepower and reliability

Complete kit includes two pistons, ring sets, wrist pins and clips

This piston kit requires the OEM cylinder to be professionally sized to suit the 0.010″ oversize pistons. CP Carrillo prefers The OEM cylinders be bored for a straighter bore and improved surface finishes with benefits of improved ring seal for increased power and durability.

Tech Tips:-

Follow ring end gap and piston to cylinder clearances as per the supplied manufacturers instructions

Pull the engine down first & measure the existing bore to determine if oversize pistons are required PRIOR to purchase, we do not take back piston kits. The onus is on the assembling technician to validate the cylinders & required pistons.

Proudly made in the USA by CP Carrillo Pistons