These high compression pistons feature a 7cc raised dome to achieve a compression ratio of 11:1 (from 9.5:1). Higher compression is a key factor in increasing performance.

* Suggested Additional Purchase: S&S Cam # SS330-0709

* We Strongly advise that you upgrade your clutch to Barnett Clutch #

B-303-28-10001

Tech Tips:-

* Follow Ring End Gap & Piston to Cylinder Clearances as per the supplied Manufacturers Instructions.

* Pullthe 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.

*“On Line Shopping Only

The post S&S Std Dome Top Pistons with 11:1 Compression Ratio. Fits Royal Enfield 650 Twins 2019up appeared first on Birds Bitz Motorcycle Parts & Accessories.

* This kit, when paired with an S&S Cam & exhaust totally changes the ride of the RE650 for the better. Transform your bike into a much more fun & exhilarating ride!

* Bore x Stroke: 90mm x 67.8mm (retains stock stroke)

* 11:1 compression ratio (stock is 9.5:1)

* Complete kits include cylinders, pistons, and head gasket

Suggested Additional Purchase:

* S&S Cam # SS330-0709

* S&S Exhaust # SS550-1031 or Mufflers # SS550-0770

*S&S Air Cleaner # SS170-0601 & Eliminator Plate # SS170-0603

* We Strongly advise that you upgrade your clutch to a Rekluse TorqDrive Clutch #

RMS-2813001

Tech Tips:-

* Ring gap & Piston to Cylinder Clearance should be checked.

* Re-Calibration of Ignition Timing & Fuel Mixture is required.

*“On Line Shopping Only

The post S&S 650cc to 865cc Big Bore Kit. Fits Royal Enfield 650 Twins 2019up appeared first on Birds Bitz Motorcycle Parts & Accessories.