Roost Piston Kit 70cc/47.6mm

Replacement piston for the Roost Havoc 70cc Cylinder kit.

TECH: (Most Euro Kits)
50cc = 40mm Piston Bore x 39.2mm Stroke
70cc = 47.6mm Piston Bore x 39.2mm Stroke
86cc = 50mm Piston Bore x 44mm Stroke
90cc = 50mm Piston bore x 45.8mm Bore
94cc = 52mm Piston Bore x 44mm Stroke