Fine-tune the rear suspension behavior of your Mini-Z with this Complete Center Shock Spring Set. The "Center Shock" (or Pitch Damper) controls the forward and backward movement of the motor pod.
This set includes 7 different stiffness ratings, giving you the ultimate flexibility to dial in your car for any track surface—from low-grip dusty floors to high-traction RCP foam. By changing these springs, you control how much the rear end "squats" under acceleration and how quickly the weight transfers to the front wheels under braking.
Key Features
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7-Piece Range: Includes a full spectrum of rates from Very Soft to Very Hard.
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Color Coded: Each spring is painted a different color so you can identify the stiffness at a glance without squeezing them.
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Precision Winding: Manufactured from high-quality spring steel to maintain consistent tension even after thousands of laps.
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Universal Fit: Designed to fit standard diameter Mini-Z center shock shafts.
Compatibility
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Shocks: Fits the stock Kyosho Plastic Shock, the Kyosho Oil Shock, and the PN Racing V3/V4/V5 Center Shocks.
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Chassis: MR-02, MR-03, MR-04, PNR 2.5, and almost any 1/28 pan car using a center shock.
Tuning Guide: Which Color Do I Use?
While specific rates can vary by batch, the general rule for Mini-Z "Pitch" tuning is:
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Softer Springs (e.g., Red/Green):
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Effect: Allows the rear pod to "squat" more under acceleration.
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Result: More Rear Grip. Great for slippery tracks or if the rear end is spinning out on exit. However, too soft can make the car feel sluggish or wheelie.
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Harder Springs (e.g., Blue/Purple/Gray):
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Effect: Resists squatting; keeps the chassis flat.
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Result: More Steering / Rotation. Great for high-traction tracks where you have plenty of grip and want the car to react faster.
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