Vertex Yamaha 4-Stroke Piston
Price: $130.00 - $160.00 |
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| Motorcycle Pistons Description |
. 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:
. YZ250F/WR250F (05-07), YZF/WRF250/Hi Comp.
(01-07) - Kit Sz. A - Standard Cyl. Bore -
77.00,
Piston
Size - 76.94. YZ250F/WR250F (05-07), YZF/WRF250/Hi
Comp. (01-07) - Kit Sz. B - Standard Cyl. Bore -
77.00,
Piston
Size - 76.95
. YZ250F/WR250F (05-07), YZF/WRF250/Hi Comp.
(01-07) - Kit Sz. C - Standard Cyl. Bore -
77.00,
Piston
Size - 76.96
. YZ250F/WR250F (05-07), YZF/WRF250/Hi Comp.
(01-07) - Kit Sz. D - Standard Cyl. Bore -
77.00,
Piston
Size - 76.97
. YZF426/WRF426(12,5:1 STD Comp.) (00-02), YZF/WRF450(12,5:1
STD Comp.) (03-07),
YZF/WRF450(13,5:1 Hi Comp.) (03-07) - Kit Sz. A - Standard Cyl. Bore -
95.00, Piston
Size - 94.93
. YZF426/WRF426(12,5:1 STD Comp.) (00-02), YZF/WRF450(12,5:1
STD Comp.) (03-07),
YZF/WRF450(13,5:1 Hi Comp.) (03-07) - Kit Sz. B - Standard Cyl. Bore -
95.00, Piston
Size - 94.94
. YZF426/WRF426(12,5:1 STD Comp.) (00-02), YZF/WRF450(12,5:1
STD Comp.) (03-07),
YZF/WRF450(13,5:1 Hi Comp.) (03-07) - Kit Sz. C - Standard Cyl. Bore -
95.00, Piston
Size - 94.95
. YZF426/WRF426(12,5:1 STD Comp.) (00-02), YZF/WRF450(12,5:1
STD Comp.) (03-07),
YZF/WRF450(13,5:1 Hi Comp.) (03-07) - Kit Sz. D - Standard Cyl. Bore -
95.00, Piston
Size - 94.96
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