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J'S RACING PRELUDE BF1 Hyper Spring

Achieving a high level of driving and comfort. The PRELUDE exclusive "HYPER Spring" is finally here!

While the Prelude's stock suspension excels in balancing comfort and responsiveness, there is still room for improvement in roll control and load transfer clarity at the edges, especially during sporty driving.

This product is a dedicated lowering spring developed to optimize driving balance while maximizing the characteristics of the genuine damper.

■ Precise rate settings and pursuit of road surface compliance: Focusing on both roll rigidity and ground contact, the front and rear spring rates are optimized exclusively for prelude. By ensuring sufficient stroke on the extension side based on the standard stroke design, we achieved excellent ground contact and follow-up performance by keeping the tires close to the road. You can experience the difference between the smooth front front entry during turn-in and the steering angle tracking that seems to cling to the rear.

■ Comes with a dedicated bump rubber bar to stabilize behavior. To suppress bottoming out during lowering, a dedicated bump rubber bar is packaged. It suppresses unpleasant behavior disturbances and loss of traction, enabling flat and stable chassis control even on rough surfaces and high-speed lane changes.

[Specifications]

  • Down amount: Front -25mm / Rear -20mm (*1)

  • Contents: Lowering spring + dedicated bump rubber

[Target Audience]

  • For those who want to maintain the ride comfort of the genuine dampers while enhancing chassis rigidity and responsiveness,

  • For those who want to enjoy safe sports driving from the streets to winding roads

  • For those who want to improve the vehicle's driving performance and styling without replacing the damper,

You'll be surprised, thinking, "Can just replacing the springs make the ride this refined?" This is a passionate setup proposed by J'S RACING that brings out the true value of prelude.

*1: The values are reference values based on the development vehicle. It varies depending on individual vehicle differences and equipment.
*2: Always perform alignment adjustments after installation.
*3: This product is designed with minimum ground clearance in mind, but please be careful not to violate safety standards due to installation status or aging.

● Basic spring specifications

Vehicle height reduction: Front - 25mm, Rear - 20mm

After thorough temperature control and molding with appropriate materials, we have achieved a strong spring with a low-temperature annealing treatment to increase tensile strength (around 200 kg level).

★ Uses zinc powder coating!
By applying a special base coating, paint peeling caused by stones and spring interference is minimized. It also has excellent corrosion resistance, making it effective for use in snowy regions and environments with lots of soil and mud.

Warnings and Precautions

[Kit Contents] (Exclusive for PRELUDE BF1)

  • Front and rear HYPER springs for one car
  • bump rubber
  • silent rubber

* We recommend that product installation be done at a professional shop with maintenance skills.
Especially if all parts are not tightened in 1G mode, ride comfort and driving performance are greatly compromised.

※ If you overturn a large bump while riding or experience a strong impact that exceeds the maximum allowable stroke, the bump rubber may instantly collapse, causing a significant drop in performance, so please be careful.

*This product has undergone development testing using genuine dampers + genuine standard tires + genuine aluminum wheels. Please understand that performance and ride comfort may vary depending on different brands of tires and wheels.

*This product is a sports down spring with a lower ride height than the stock one. Please note that we do not provide any warranty for damage to the inner, fender, or other parts caused by intense sports driving or strong impacts, regardless of whether the wheels or tires have been replaced.

*Please ask for the ETA.

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