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* These BBK consist of cylinder head set (fitted with camshaft and valves), cylinder, piston, piston rings, gasket and transmission gear (for 90cc BBK only).

  
 
Item
Specifications
50CC
70CC
90CC
Bore (mm)
39
46.5
50
Stroke (mm)
41.5
41.5
41.5
Displacement
49.6cc
70.4cc
81.4cc
Maximum power
2.2kW / 8000rpm
2.8kW / 8000rpm
3.2kW / 8000rpm
Rating power
2.0kW / 7500rpm
2.6kW / 7500rpm
3.0kW / 7500rpm
Maximum torque
2.5Nm / 6500rpm
3.8Nm / 6500rpm
4.1Nm / 6500rpm
Climbing angle
10°
13°
15°
Initial acceleration (from standstill to 100M)
11.22s
9.95s
9.01s
 
 
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