Description
Beta 390 RR piston
The ProX brand is synonymous with quality and offers a wide catalog of spare parts adaptable to a variety of motocross models. In most cases, these are not performance enhancing parts, but they do have the same qualities as the original components.
ProX Piston
- Aluminum casting (gravity casting)
- CNC cast and machined
- High thermal stability
- Various dimensions available for each bike
Dimensions :
- Dimension: C
- Bore: 87.98 mm
Useful note: for optimum performance, measure your cylinder beforehand to ensure that it meets the manufacturer's recommended piston-to-cylinder clearance by choosing the correct piston dimension.
When to replace the piston?
To find out when the piston on your motorcycle, scooter or moped needs to be replaced, it's best to check your bike's manual. You can also keep an eye out for certain symptoms such as loss of compression, loss of power or oil consumption (only for a four-stroke piston).
Extending Piston life
To extend the life of the piston and reduce cylinder wear, it is recommended that you replace the piston rings on an alternating basis. This method maximizes piston life and improves engine performance.
It is important that you replace cylinder gaskets and piston circlips each time you disassemble the cylinder and piston. Failure to do so can result in oil leaks and engine damage.
Tuning Level: Original
We categorize our products into different performance levels Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.
Under Original you will find parts whose performance and technical specifications are identical to those of the stock part.