Vertex Replica Piston Kit
1012-9564 (MFG #: 22915B)
$357.52
Sale price
$357.52
Regular price
$397.23
Sale
-9%
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Vertex Replica Piston Kit for BETA RR-S 390 Dirt Bike
Vertex Replica Piston Kit for BETA RR-S 390 Dirt Bike
$357.52
Sale price
$357.52
Regular price
$397.23
Sale
-9%
SKU:1012-9564
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Description
FEATURES
- All piston skirts are coated with a hi-tech Molybdenum Disulphite coating for faster break-in time and increased piston life
- Cast Replica piston kits are gravity cast aluminum alloy (not forged) with 18% silicone content, which produces an extremely light but very strong piston
- Forged Replica pistons are forged from 2618 aluminum for superior strength and durability
- Forged High Compression pistons improve power and torque across entire rpm range
- Forged Big Bore pistons increase engine's displacement, torque, and peak horsepower
- Forged Replica pistons are forged OE replacements
- All pistons are heat treated with a T-5 hardening and tempering cycle
- Replica pistons and all rings are OEM replacements
- Kits include piston, rings, wrist pin and circlips
- Two stroke replacement rings are sold individually (Example if your piston has two rings you will want to order two rings)
- Four-stroke piston rings sold as a set
Technical Specifications
- MFG. Part Number 22915B
Vehicle Information
BETA RR-S 390 Dirt Bike (2015-2023)
The BETA RR-S 390 is a well-regarded dual-sport motorcycle produced from 2015 to 2023. Powered by a single-cylinder, 4-stroke, liquid-cooled engine, it is valued for its robust torque delivery and predictable handling, rather than raw horsepower figures. While engine displacement remained largely consistent (around 386cc), the model received numerous enhancements over the years, particularly in its fuel injection system, chassis, and other key components. The 2015-2023 period saw significant developments for the RR-S 390. Following the introduction of electronic fuel injection (EFI) in 2017 and an upgraded chassis in 2018, the year 2020 marked a major overhaul. This included a new frame, subframe, redesigned bodywork, an improved cooling system, increased fuel tank capacity, and significant engine updates. Subsequent years brought further refinements, such as a diaphragm clutch and refined suspension settings in 2022, culminating in 2023 with optimized engine maps. FAQ:
Q: How can I ensure this part is compatible with my BETA RR-S 390?
A: To guarantee compatibility, please use the year and model selector located at the top of this page.
Maintenance
| Component | Interval | Details |
| Engine Oil Change | 5 to 15 hours | Varies by model year and riding type (recreational or aggressive). Newer models and aggressive riding may require more frequent changes. |
| Oil Filter | With every oil change | Replace paper filter and clean metal strainer. |
| Air Filter | 5 to 20 hours | More frequently in dusty or muddy conditions. Varies by model year and riding type. |
| Spark Plug | Check/service at 30 hours, then every 60 hours | |
| Coolant | 12 months or 60-90 hours | Regularly check levels and inspect for leaks. |
Maintenance intervals can vary by model year and riding type. Always consult the official owner's manual for precise information.