TUBE STRUCTURE & CHASSIS | PISTON & VALVE SYSTEM
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PISTONS
ID 7/8" (0.45 to 4.5 oz) ID 1-3/8" (1.1 to 11 oz)
ID 1-7/8" (2.1 to 21 oz) ID 2-7/8" (5.0 to 50 oz)
ID 4-1/4" (10.9 to 109 oz) ID 5-1/4" (16.7 to 167 oz)