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Purchasing Information:
After you place your order on this site, we will contact you to confirm your order details prior to payment being made. All orders will be processed and fulfilled by one of our authorised dealers. Rollies Speed Shop Distribution is a wholesale business and does not sell directly to the general public. For more info see the Purchasing Information page.
Features & Benefits:-
* Bore = 3.508in.
* Stroke = 4.250in.
* Hypereutectic Alloy is a cast 16% silicon content material.
* Perfect for air cooled engines.
* Low thermal expansion rate = tighter piston-to-cylinder clearance.
* Complete kit includes: two pistons, rings, wrist pins and clips.
* Replaces OEM # 21942-83
Tech Tips:-
* 8.6:1 Compression Ratio with 80cc Head Chamber Volume.
* Follow Ring End Gap & Piston to Cylinder Cle arances 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.
MFR PART No: KB258.010
ROLLIES PART No: KB258.010
Give us a call us on
(07) 3252 5381 and one of our
parts specialist’s will help
you get the parts you need.Â
