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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New designed Aluminum lightweight front and rear bulkheads
New designed Aluminum lightweight motor mount
New designed Lightweight slipper unit
New designed steering system
New design front and rear suspension arms
High durability Φ3.5mm inner suspension pin adopted
Bush type upper arm pivot (inside)
Changeable battery positions
Roll center adjustable bush insert rear hub carrier
For dirt, and carpet springs / stabilizers are also included
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.