. Kits are cast aluminum alloy (not forged) with an
18-20% silicone content, which produces a light but
strong piston. Piston skirts are Bisulphide-coated for faster break-in
time and increased piston life.
All pistons are heat-treated with a T-5 hardening and tempering cycle
. Standard pistons and components are O.E.M.
replacements
. Most Vertex pistons are made for standard size
cylinder only, except the CR500, Banshee and
Blaster
. A, B, C, and D piston sizes are 0.01mm variations
in the piston size to increase or decrease the
clearance within the cylinder, except for overbores
. Race pistons are available for a variety of models
and are built for higher compression and more
horsepower
. A single ring is used on all race pistons reducing
frictional drag and giving higher RPMs
. Race gas is recommended for all Vertex race
pistons
. Kits include piston, ring, piston pin (wrist pin)
and circlips
. Replacement rings are sold individually, order 2
for dual-ring pistons
Note:
. EX/EXC250/EXC250 Hi Comp. (01-06) - Kit Sz. A - Standard Cyl. Bore -
75.00, Piston
Size - 74.95. EXC250/EXC250 Hi Comp.
(01-06) - Kit Sz. B - Standard Cyl. Bore -
75.00, Piston
Size - 74.96
. EXC250/EXC250 Hi Comp. (01-06) - Kit
Sz. C - Standard Cyl. Bore -
75.00, Piston
Size - 74.97
. SX250F (06) - Kit Sz. A - Standard Cyl. Bore -
76.00, Piston
Size - 75.96
. SX250F (06) - Kit Sz. B - Standard Cyl. Bore -
76.00, Piston
Size - 75.97
. SX250F (06) - Kit Sz. C - Standard Cyl. Bore -
76.00, Piston
Size - 75.98
. SX450 (03-06), SX450(12:1 STD Comp.)
(03-06), SX450(13:1 Hi Compr.) (03-06), SX/EXC520
(00-02), SX/EXC525 (12,5:1 Hi Comp.) (03-06), SX/EXC525 (12,5:1 Hi
Comp.) (03-06) - Kit Sz. A -
Standard Cyl.
Bore - 95.00, Piston Size - 94.93
. SX450 (03-06), SX450(12:1 STD Comp.)
(03-06), SX450(13:1 Hi Compr.) (03-06), SX/EXC520
(00-02), SX/EXC525 (12,5:1 Hi Comp.) (03-06), SX/EXC525 (12,5:1 Hi
Comp.) (03-06) - Kit Sz. B -
Standard Cyl. Bore -
95.00, Piston Size - 94.94
. SX450 (03-06), SX450(12:1 STD Comp.)
(03-06), SX450(13:1 Hi Compr.) (03-06), SX/EXC520
(00-02), SX/EXC525 (12,5:1 Hi Comp.) (03-06), SX/EXC525 (12,5:1 Hi
Comp.) (03-06) - Kit Sz. C -
Standard Cyl. Bore
- 95.00, Piston Size - 94.95
. SX450 (03-06), SX450(12:1 STD Comp.)
(03-06), SX450(13:1 Hi Compr.) (03-06), SX/EXC520
(00-02), SX/EXC525 (12,5:1 Hi Comp.) (03-06), SX/EXC525 (12,5:1 Hi
Comp.) (03-06) - Kit Sz. D -
Standard Cyl.
Bore - 95.00, Piston Size - 94.96
