Welcome to MJ Select.
We are Japanese seller. We ship authentic items from Japan.
Please enjoy shopping with peace of mind!
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【About Included Manuals】
If a manual is included, it will primarily be in Japanese. We recommend using image translation apps if needed.
【Voltage Compatibility】
When using electrical appliances, please note that they are designed for Japanese voltage specifications (90-110V), so if you use them with a different voltage, it may cause a malfunction.
【Plug Type】
Our products use Japanese plug types (A or B type).
Please use a conversion adapter if necessary.
【Important Note on Transformers and Adapters】
A transformer adjusts voltage to match your device’s requirements.
A conversion adapter only changes the plug shape and does not adjust voltage.
Using only a conversion adapter without a transformer may result in damage to the product.
【Liability】
We are not responsible for malfunctions or damages caused by improper use, such as operating the product without a transformer.
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✅This is a custom bumper that integrates left and right independent slide dampers and an AT bumper.
✅AT bumpers are designed to absorb shocks from all angles by flexibly moving the bumper body, increasing the "course return rate" of the vehicle. With existing rigid bumpers (normal, fixed bumpers), the vehicle would bounce off the course after landing after a jump, but by installing an AT bumper, the vehicle is less likely to bounce.
This product is equipped with four springs. The two upright springs function as an AT bumper, which flexibly moves the entire bumper, while the two springs embedded horizontally in the main bumper function as independent left and right slide dampers. By using these springs not only as AT bumpers but also as existing slide dampers, it can be used on a wider range of courses.
✅When landing at an angle, the entire bumper moves flexibly to absorb the impact, but the AT bumper is also effective in preventing the roller from getting caught on the course, something that was previously addressed with an underguard. Even if the roller gets caught on the course fence, the entire bumper can move flexibly to easily escape.
✅ Installation is compatible with all chassis. For chassis such as MA, MS, AR, and VZ, the mounting holes will align with the chassis holes, so there should be no problem. However, all chassis require cutting the bumper. This is accomplished by simply cutting the factory bumper section in a straight line using a router or craft saw, similar to traditional "bumper removal" procedures, so it's not particularly difficult. Please note that for MA chassis, installing the lower front end will result in upper thrust, so adjustments will be required. This product is primarily intended for use with zero thrust. While "down thrust as close to zero thrust as possible" is ideal, for VZ chassis, the base of the mount will interfere with the chassis, so a small amount of sanding will be required. To sand the carbon fiber, a diamond file is recommended.
This custom bumper integrates independent left and right sliding dampers with an automatic (AT) bumper. The AT bumper is designed to flexibly move the bumper body to absorb shocks from all angles, improving the vehicle's "course return rate." While existing rigid bumpers (normal, fixed bumpers) can cause the vehicle to bounce and go off course after landing, the AT bumper reduces the risk of the vehicle bouncing. This product is equipped with four springs. Two upright springs act as the AT bumper, allowing the entire bumper to move flexibly, while two springs embedded horizontally within the main bumper function as independent left and right sliding dampers. By combining the functions of the AT bumper with those of the existing sliding dampers, it can accommodate a wider range of course patterns. While the AT bumper flexes to absorb impact when landing at an angle, the AT bumper also effectively prevents the vehicle from getting caught on the course, a problem previously addressed with undercarriage guards.
Even if the roller gets caught on the course fence, the entire bumper can be flexibly moved to easily clear it. ✅Installation is compatible with each chassis. For chassis such as MA, MS, AR, and VZ, the mounting points align with the chassis holes, so there should be no problem. However, all chassis require cutting the bumper. This is achieved by simply cutting the factory bumper in a straight line using a router or craft saw, similar to traditional "bumper-removal" procedures, so it's not particularly difficult. Please note that for MA chassis, installing the roller on the lower front will result in upper thrust, so adjustments will be required. This product is primarily intended for use with zero thrust. While "down thrust as close to zero thrust as possible" is ideal, for VZ chassis, the base of the roller interferes with the chassis, so a small amount of sanding is required. A diamond file is recommended for sanding the carbon fiber.