top of page

To everyone who orders products

Currently, the delivery time from ordering to shipping is around one month.

We apologize for the inconvenience, but please check the delivery date in advance if you are in a hurry.

Reverse knuckle for JZZ30 JZA80 (with trade-in)


■ Reverse knuckle

■ Instruction manual (mounting method recommended alignment setting) is attached

■ Only with genuine trade-in settings

■ Color Green / Unpainted

■ Shipping fee 3,000 yen (tax included)

【Description of item】

Supra & Soarer riders all over the country, thank you very much for your patience! Finally, we released the test after repeating the test. It is the strongest knuckle kit that was finally completed after repeated tests.

Knuckles that are so easy to handle and cut are not other companies.

It is a self-confident work that clears the maximum sharpness angle, operability, head entry, and reverse joints. All you have to do is install the knuckle kit and align it with the alignment numbers listed in the instruction manual. Move Soarer like Sylvia! "REVERSE KNUCKLE" was born in pursuit of driving that allows you to enter the knuckle from anywhere and immediately turn on the accelerator. From the design stage, we started development on the premise of a parallel type and repeated tests in all conditions while considering alignment so that it could be used in an ideal state, and completed it with a large turning angle as a weapon. In recent years, the drift situation requires fast accelerator on from a sharp start and overall vehicle speed. I think that the future will be an indispensable element. The reverse knuckle is not just the turning angle of the front tire, but also a sharp swing, and the theme is accelerator on without waiting. To make the best use of the characteristics of this product and enable driving in a different dimension, install it referring to the recommended settings described in the attached instruction manual.


The reverse knuckle is manufactured as a competition-only part, so never use it on public roads. Please note that we cannot guarantee or guarantee any troubles or accidents related to the installation of this product. Please note that if the reverse knuckle is used in a combination other than the reverse lower arm, it will interfere with each part and the original performance will not be exhibited.

[Delivery date and shipping fee]

This product does not require trade-in of genuine products. The delivery time is around one month. In addition, please bear the shipping fee by yourself.

[Cancellation of returns]

As this is a made-to-order product, we cannot accept cancellations or returns after purchase.

BOOSTAR / Reverse Knuckle for JZZ30 JZA80

Sales Tax Included
  • We will only accept if the product is defective or different from the ordered product. If there is an obvious defect in the product or if the product is incorrect, we will bear the shipping cost for returned goods. Only if you contact us within 7 days of the arrival of the item.

    Please note that we cannot accept cancellations or returns due to customer's convenience.

    The following items cannot be canceled, returned or exchanged.

    ・ Opened products and used products

    ・ Products that have been delivered for more than 8 days

    ・ Products that have been scratched or soiled after they arrive

    ・ Made-to-order products manufactured after ordering

bottom of page