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

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

* Tanks require body finish prep work

OR Chisel / Slicer or Agitator wheels different from others altogether

* Required for FXBB Street Bob & FXLR Low Rider Softail 2018up models still running mid mounts when upgrading to the S&S SuperStreet 2:1 system of the S&S Grand National 2:2 system

Bolt and washers included for:

please do a VIN check BEFORE ordering

* Welded-in screen & larger diameter holes

Now including a Jagg 4501 sandwich adapter for comprehensive fitment of air-cooled Milwaukee-Eight

NOTE: ALLOY PULLEYS ARE DESIGNED FOR LIGHTWEIGHT RACE APPLICATIONS AND ARE PRONE TO PREMATURE WEAR – NO WARRANTY IS OFFERED ON THESE PULLEYS

* It is recommended that you re-jet your bike with a Cobra Jet Kit

* Replacement Screw-In Fuel Caps # BAI-03-0301

New Disc Bolts # AN-300-913 or FE-ARP200

* Valve Positions unaffected by vibration