Specifically matched to the Ultima SB Dirt Master, the Kyosho W5309-36 Big Bore Spring set helps improve chassis stability and handling over rough sections. These springs are made to withstand hard running while giving tuners clear feedback.
The Kyosho W5309-36 springs offer a consistent balance between strength and movement for off-road environments. At 44mm long with a 3.55mm wire diameter, they are engineered to deliver durability without sacrificing needed compliance for jumps and rough landings.
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