RUDDOG Racing RP542 Stock Sensored Brushless Motor 21.5T

The latest addition to the new RUDDOG Racing family of competition products is the RP542 engine series. After intensive testing and development, improvements have been made in many areas compared to its predecessor.

A newly designed winding package improves the power delivery of the motor and, in conjunction with the precision sensor unit, increases controllability and efficiency. One focus of the RUDDOG design team was to reduce the operating temperature. Large cooling holes have reduced the weight of the RP542 on the one hand and increased the air flow on the other.

The collector ring now features cooling fins to improve heat dissipation. Optimized rotors are used for the various applications. For the RUDDOG Stock motors, a 12.5mm x 7.15mm x25.8mm rotor is installed to meet the high requirements of the Stock classes.

Technical Specifications

• Winding: 21.5 turns
• Dimensions: 35.9x51.6mm
• Weight: 144.0g
• Ball bearing type: high quality steel ball bearing

Features:

• Competitive motors from the RUDDOG Racing product family
• Newly designed stack for better power delivery
• Precision sensor
• Lightweight motor housing with optimized airflow
• Collector ring with cooling fins
• Special rotors for stock and modified engines
• Number of turns easily identifiable from the outside