31.

SYM DIO Microns Stroke Extended CrankShaft
Model: DIO65-030
Original stroke : 41.4mm

DIO65-030200：DIO 2000 Microns Stroke Extended CrankShaft. (43.4mm stroke)

DIO65-030300：DIO 3000 Microns Stroke Extend... (Read more)

32.

YAMAHA RS Oversize Cylinder Head
Model: RS-020
RS-02024/21：RS Oversize Cylinder Head 24/21.

RS-02028/23：RS Oversize Cylinder Head 28/23.

33.

GY6 high Torque Starter motor
Model: GY6-PM001
GY6- PM001 high Torque Starter motor : enhance horsepower and high torque

34.

SYM DIO oversize Water Cooler Cylinder
Model: DIO-060
DIO-06052.5：DIO Water Cooler Cylinder 52.5

DIO-06054：DIO Water Cooler Cylinder 54

35.

YAMAHA RS Microns Stroke Extended CrankShaft
Model: RS-030
Original stroke : 54mm

RS-030300-13：RS3000 microns stroke extended crankshaft-13 (57mm stroke)

RS-030300-15：RS3000 microns stroke extended cra... (Read more)

36.

SYM DIO oversize Water Cooler Cylinder Kit
Model: DIO-080
DIO-080-52.5：108CC

DIO Water Cooler Cylinder Kit.

water cooler cylinder 52.5mm ,water pump 12V

radiator ,hose water ,gaskets base + copper... (Read more)

37.

YAMAHA RS Oversize Cylinder Head Kit
Model: RS-090
RS-090-1 RS Oversize Cylinder Head Kit : 153.2cc

RS 58.5 mm cylinder + RS Oversize Cylinder Head 24/21

+ RS 3000 microns stroke extended cr... (Read more)

38.

YAMAHA RS Oil Cooler Kit
Model: RS-050
RS-050：RS Oil Cooler Kit.

39.

SYM Wolf oversize Cylinder
Model: WOLF-010
Original Size WOLF 62mm Cylinder.(62*49.5)150cc

WOLF-01065 ：WOLF Big Bore 65mm Cylinder. 164.25cc

WOLF-01067： WOLF Big Bore 67mm Cy... (Read more)

40.

SYM WOLF Microns Stoke Extened CrankShaft
Model: WOLF-030
Original stroke: 49.5mm

WOLF-030800：WOLF 8000 Microns Stoke Extened CrankShaft.( 57.5 mm stroke )