| Basics of Mini 4WD | ||||
| Part of the chassis | ||||
| ||||
| Basics of Grade-up Parts | ||||
| ||||
| Intermediate and expert customizations | ||||
| ||||
| Race categories | ||||
| ||||
The Bumper (Japanese: バンバー, Banbā) is the frontal part of the Mini 4WD car's chassis, it acts as the frontal protection and as the front roller stay for the car.
General Info
In the stock car setup, the bumper is strong enough to withstands the impacts as the car collides with the circuit's fences.
However, as the car was tunes faster, the bumper might not able to withstands the impacts and will eventually breaks apart. This is where the reinforced plates and shock absorb parts comes to play; those parts are to strengthen the bumper, extend it and in some parts, absorbs the impacts. Extending the bumper will also lessen the impacts it receives, which in turns increases the car's acceleration and stability.
The bumper is usually the chassis part that is being puts on more stresses than the rear stay.
Some racers prefers the bumper-less setup, where the sides of the bumper were cut off all together and replaces them with reinforced plates. This setup allows to shaves off the weights of the chassis, but it can be only done on cars with Super X Chassis and newer.
Newer chassis like Super XX Chassis, Super-II Chassis, AR Chassis, MA Chassis and FM-A Chassis has their bumper extended.
See also
- Roller
- Side-guard
- Basic:Rear stay
- Reinforced plate
- Shock absorb parts