BIG BORE CYLINDER KIT (103.5cc) YAMAHA YZ85 2002-2018 CYLINDER WORKS 21007-K01 – Motocross Parts UK

Use with Hot Rods Crankshaft #4179 for 770cc
Uses Vertex #23628
Compression Ratio 8.2:1
Cylinder Diameter 52.500 mm
Cylinder Kit Type Big Bore
Displacement 103.500 cc
Engine Type 2-Cycle
Includes Cylinder, Piston Kit, and Top-End Gasket Kit
Size Over Standard 5.0mm
Cylinder- new, not remanufactured, cast aluminium nickel silicon carbide (NSC) electroplated big bore cylinder that appears just like an OE cylinder. NSC is a composite of a nickel and silicon carbide, providing an excellent wear resistant surface with oil retention capabilities. Cylinders are then diamond honed to the exact bore dimension and proper surface finish to ensure the proper ring seal and oil retention.
Vertex big bore piston- To handle the internal pressures of a four-stroke engine, Vertex’s big bore four-stroke pistons are forged from the highest quality 2618 aluminium alloy for superior strength and durability. Vertex uses unique piston profiles and compression ratios, offered in A, B, C and D sizes, to maximize power and performance while reducing blow-by and oil consumption. Each Vertex piston is then hand matched to fit each Cylinder Works cylinder perfectly.
Gasket kits- These kits contain the necessary gaskets to rebuild your top end. Kits include head, base, exhaust gaskets, and o-rings necessary when removing the cylinder and head during routine maintenance.
CYLINDER WORKS BIG BORE KITS:
WITH THE EXCEPTION OF A MECHANIC, THE CYLINDER WORKS BIG BORE KIT
PROVIDES YOU WITH EVERYTHING YOU NEED TO TRANSFORM YOUR BIKE OR ATV
FROM MODEST TO MONSTER IN ONE BOX.
IN ADDITION TO THE STOCK APPEARING, NICKELSILICON CARBIDE, PRECISION HONED
BIG BORE CYLINDER KIT CONTAINS:
ALL REQUIRED GASKETS
VERTEX BIG BORE PISTON COMPLETE WITH RINGS PIN AND CIRCLIPS – BIG BORE CYLINDER KIT (103.5cc) YAMAHA YZ85 2002-2018 CYLINDER WORKS 21007-K01 – Motocross Parts UK