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The YZ-4SF, which has been well reputed by many drivers for its high driving performance, has evolved even further! The bulkhead, motor mount, slipper clutch, etc. have been significantly lightened weight, resulting in dramatically improved movement perfo
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Features:
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Newly designed front and rear suspension arms improve rigidity. The Φ3.5mm inner suspension pin has also been adopted to greatly improve crash resistance. |
Improved throttle response by size reduction of the center slipper provides light acceleration. | ![]() |
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