Pistons
High-Compression Pistons
(forged piston)
Compression ratio: 14.2:1
A-dimension, D=76.75 mm
High-Compression Piston (2 Rings)
(Forged Piston)
Compression ratio: 13.8:1
A-measurement = 76.95 mm
High-Compression Piston (2 Rings)
(Forged piston)
Compression ratio: 13.5:1
A-measurement = 76.96 mm
High-Compression Piston (2 Rings)
(Forged Piston)
Compression Ratio: 14:1
A-dimension = 76.96 mm
High-Compression Pistons
(forged piston)
Compression ratio: 13.9:1
A-dimension = 76.96 mm
High-Compression Piston (2 Rings)
(Forged piston)
Compression ratio: 13.8:1
B-dimension = 76.96 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.9:1
B-dimension = 76.96 mm
High-Compression Piston
For Athena Cylinder Kit and Standard Cylinders
Compression ratio: 14.1:1
A-measurement = 76.96 mm
High-Compression Piston (2 Rings)
(Forged Piston)
Compression ratio: 14:1
B-dimension = 76.97 mm
High-Compression Piston
For Athena Cylinder Kit and Standard Cylinders
Compression ratio: 14.1:1
A-dimension = 76.97 mm
High-Compression Piston (2 Rings)
(Forged Piston)
Compression Ratio: 13.5:1
B-dimension = 76.97 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.9:1
B-dimension = 76.97 mm
High-Compression Pistons
(forged piston)
Compression ratio: 13.9:1
C-dimension = 76.98 mm
High-Compression Piston (2 Rings)
(Forged piston)
Compression ratio: 13.5:1
C-dimension = 76.98 mm
High-Compression Pistons
(forged piston)
Compression ratio: 13.9:1
A-dimension, D=77.96 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.9:1
B-dimension, D=77.97 mm
High-Compression Pistons
(forged piston)
Compression ratio: 13.9:1
C-dimension, D=77.98 mm
High-Compression Piston
(forged piston)
Compression ratio: 13:1
A-dimension, D=95.95 mm
High-Compression Piston
(forged piston)
Compression ratio: 13:1
B-dimension, D=95.96 mm
High-Compression Piston
For Athena cylinder kit and standard cylinders
(Forged piston)
Compression ratio: 13:1
A-measurement = 95.96 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.5:1
A-dimension, D=95.96 mm
High-Compression Pistons
(Forged piston)
Compression ratio: 13.5:1
B-dimension, D=95.97 mm
High-Compression Pistons
(forged piston)
Compression ratio: 13.5:1
B-dimension = 96.97 mm
High-Compression Piston
For Athena cylinder kit and standard cylinders
(Forged piston)
Compression ratio: 13:1
B-dimension = 95.97 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.2:1
B-dimension = 95.97 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.5:1
C-dimension, D=95.98 mm
High-Compression Piston
(forged piston)
Compression ratio: 13.5:1
B-dimension = 96.97 mm
Dimension A = 39.46 mm
Dimension A = 39.46 mm
B dimension: 39.47 mm
Dimension B = 39.47 mm
C dimension: 39.48 mm
Dimension C = 39.48 mm
D dimension = 39.49 mm
D dimension: 39.49 mm
A dimension = 43.44 mm
Dimension B = 43.45 mm
C dimension = 43.46 mm
For ATHENA CYLINDER KIT "RACE" P400485100008 (C-dimension = 53.96 mm)
A dimension = 44.45 mm
Dimension B = 44.46 mm
Dimension C = 44.47 mm
Dimension A = 44.96 mm
Dimension A = 44.96 mm
Dimension B = 44.97 mm
Dimension B = 44.97 mm
Dimension C = 44.98 mm
Dimension C = 44.98 mm
D dimension = 44.99 mm
Dimension A = 46.94 mm
Pistons: engineered for motocross and enduro riders. Strong materials, precise fitment and reliable performance.





