Manufactured in Italy, Vertex, the
premier brand of OEM replacement pistons, is the OEM supplier to KTM
and numerous European motorcycle and go-kart manufacturers. Vertex
offers enthusiasts state-of-the-art, high-quality pistons for nearly
any powersport use from motorcycles and ATVs to marine and karting.
Manufactured to the highest standards in Japan, Vertex’s piston rings
are produced by the OEM suppliers so that they are direct OEM
replacements. Vertex is the choice of those who truly seek the optimum
in powersport performance in any application.
Vertex Two-stroke Pistons
Because of a cast piston’s ability to
contain higher silicon content compared to forged pistons, and because
twostrokes have lower cylinder pressures when compared to four-strokes,
cast pistons are ideal for two-stroke engines.
Vertex pistons are gravity cast from an aluminum alloy with 18% silicon
content. Silicon is important because:
• It decreases thermal expansion, which changes the geometry after the
piston reaches operating temperature. With low thermal expansion
characteristics, Vertex pistons can be run at tighter tolerances
compared with forged pistons. This creates better power and
performance, also making them less susceptible to rattling or breaking.
• Silicon gives the pistons better wear characteristics and prolongs
piston life by decreasing wear on the piston skirt.
Vertex Four-stroke Pistons
Four-stroke engines have much higher cylinder
pressures when compared to twostrokes and are generally manufactured
from forgings. To handle the internal pressures of a four-stroke
engine, Vertex’s
four-stroke pistons are forged from the highest quality 2618 aluminum
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.
Vertex Wrist Pin Features:
• KTM four-stroke wrist pins are DLC coated.
• Case hardened wrist pins are used with all Vertex pistons.
• Nitride coated pins are normally used for high performance
four-stroke engines utilizing a bronze bushing or with engines using a
steel connecting rod without bearings. This hardened surface is highly
wear resistant and provides anti-galling properties.
• Nitriding is a highly specialized surface treatment that produces a
highly wear resistant surface. The significant advantage of nitriding
is that the surface hardness is developed without quenching and the
attendant distortion problems with case hardening. Finishing operations
can be eliminated or held to a minimum.
Vertex Piston Rings
Vertex’s latest generation two-stroke and four-stroke piston
rings are nitride coated or chrome plated, increasing wear resistance
and extending durability. Vertex piston rings are exact OEM
replacements.
All Vertex Pistons
Feature:
• Standard pistons and components are OEM replacements.
• Kits include piston, rings, wrist pin and circlips.
• All pistons are heat treated with a T-5 or T-6 hardening and
tempering cycle.
• Replacement rings are sold individually