650cc to 865cc Big Bore Kit. Fits Royal Enfield 650 Twins 2019up

Product Details







Features & Benefits:-* 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 gasketSuggested 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-2813001Tech Tips:-* Ring gap & Piston to Cylinder Clearance should be checked. * Re-Calibration of Ignition Timing & Fuel Mixture is required.
MFR PART No: 920-0145

ROLLIES PART No: SS920-0145






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