RUDDOG Racing RP542 21.5T 540 Stock Sensored Brushless Motor
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Description
Overview
The RUDDOG Racing RP542 brushless motor series is designed for top-level competition and combines power, efficiency, and advanced thermal management. With a redesigned stator stack for smoother handling and a new precision sensor for optimal performance, the RP542 ensures consistent output and control. The lightweight housing with large cooling openings and a ribbed stator collector ring improves airflow and heat dissipation. Each motor is tuned to its application—modified versions use a 12.1 × 5 × 24.5 mm rotor, while stock models use a 12.5 × 7.15 × 25.8 mm rotor—delivering maximum performance in every racing class.
Features
- RUDDOG Racing competition motors
- Brand-new stack design for improved handling
- High-precision sensor unit
- Lightweight motor housing with large openings for increased airflow
- Ribbed stator collector ring for improved heat dissipation
- Specific rotors for modified and stock racing motors
- Clearly visible motor winding number
| Turn Rating | 21.5T turns |
| Dimensions | 35.9 × 51.6 mm |
| Weight | 144 g |
| Ball bearing type | High-quality steel bearings |
| Replacement ball bearings | RP-0148 RP540 Ball Bearing Set |
| Rotor | RP-0435 RUDDOG Racing RP541 | RP541 12.5x7.15x25.8mm Stock Rotor |