More than a sports car and less than a racing car.Mass-produced shape product with tuned rubber hardness.

In order to enjoy driving positively, it is important to communicate closely with the car.When the driver senses the input from the road surface and steers, the movement of the car is corrected.Furthermore, the driver senses the movement and repeats the next steering, etc., which is a closed loop that is swiftly and accurately exchanged.To achieve this, we have released a number of body reinforcement parts, and we have focused on the rubber bushes installed on the moving parts of the suspension.
The rubber bush used in mass-produced cars, even sports cars, needs to ensure comfort, so the hardness of the rubber must be set soft and vibration absorption must be prioritized.Therefore, in a scene such as running around winding, I feel a delay in reaction to the driver's operation for a moment.There are more than 30 bushes scattered around the ND Roadster, which has double wishbones on the front and multi-link suspension on the rear.If you stiffen it, you can easily imagine that it will make a big difference in maneuverability.
The key is how to adjust the hardness.If you replace it with a metal pillow ball or hard urethane just like a racing car, it will give you a very rigid feeling, but in exchange it will generate operating noise due to vibration and deterioration over time, so it is not suitable for street use.On the contrary, if it is soft, the reaction is dull.
Our suspension bush has a specification that keeps the mass production shape and increases the rubber hardness to about 110 to 140%.While ensuring practicality, it suppresses bending of moving parts and creates solid handling that is more than a sports car and less than a racing car.The lineup is based on the upper mount that enhances the movement of the damper during a minute stroke and the lower arm side that bears the load, and all the movable parts of the suspension up to the upper arm side.I want you to identify the strengthening points according to the driving stage.Of course, it is also recommended as a tuning that combines the refreshment of your car with increased mileage and the improvement of sports.

<Product features>

■ Upper mount bush set
It is mounted by sandwiching it between the top mounts of the damper to increase the movement of the damper during minute strokes and support the rise of damping force.If the bush in this part is soft, the input from the road surface is applied and the bush bends before the damper strokes, which hinders the initial operation of the damper.Simultaneous replacement with mass-produced dampers and springs is recommended.Ideal as the first step in bush replacement.Rubber hardness 127% (compared to mass production).

■ Suspension bush set (lower)
By hardening the bush on the suspension lower side, which mainly handles the load from the road surface, alignment changes are suppressed and accurate handling is supported.By combining the upper side, which has a relatively small load, with mass-produced products, a ride that combines suppleness is created.I would like to recommend it as a basic set of suspension bushes.Eight front lower arms, rear trailing / toe control / lateral link, and 8 rear axle parts are set.It can also be purchased separately.Rubber hardness 14-109% (compared to mass production).

■ Suspension bush set (upper)
An optional item that is premised on the combination with the suspension bush (lower).By installing it as a set, total tuning that suppresses the deflection of the entire suspension is completed.Achieves unambiguous solid handling even in sports driving on closed courses with continuous high loads.Compared to metal pillow balls, vibration absorption is guaranteed, but please note that the feeling of pushing up on rough roads increases in exchange for a direct feeling.A total of 8 locations, including front and rear upper arms and lateral / leading links, are set.It can also be purchased separately.Rubber hardness 125-146% (compared to mass production).

<Product compatibility table>

■ Suspension Bush Set　For Roadster (ND) * Please contact us for reference work time at the time of installation.

<Illustration of mounting part>