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inner rotor ignitions
These steps guarantee that each and every bearing we sell is accurate and consistent
Standard Spec
Bolt hole spacing: 48mm [1
Total mass 1650gr
Roost Piston Kit 50cc/40mm - (12mm) Size:B inner rotor ignitionsReplacement piston for the Roost Havoc 50cc 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
