Tekin Pro4 HD BL, 2Y 1850kv, 500, 5mm shaft

The Tekin Pro4 HD 1850kV 4‑pole brushless motor delivers the punch and efficiency demanded by modern 1/10 4WD short course racing. This 2Y wind variant (part number TT2522) uses a longer 550‑size can and a robust 5mm shaft to provide excellent torque, smooth power delivery and durability under high loads.

Key Features

• Designed to be paired with the Tekin RX8 Electronic Speed Control
• 4‑pole, 12‑slot high‑torque 550 motor architecture
• CNC‑machined 6061‑T6 billet aluminium heatsink can
• Neodymium sintered magnets
• Rebuildable design
• High‑purity copper windings for maximised efficiency
• Precision‑engineered for strong energy conversion and throttle response
• Dual‑plug sensor wire harness for use with sensored systems
• High‑RPM ABEC5 oversized bearings

Specifications

• Turns: 2Y
• kV: 1850
• Voltage range: 2S (7.4V) to 4S (14.8V)
• Rotor: 18.5mm
• Weight: 221g (7.8oz)
• Shaft: 15.3 x 5mm
• Motor diameter: 35.8mm
• Motor length: 62.5mm
• Bearings: Front 5x14x5mm, Rear 5x11x5mm

Blending a proven 4‑pole design with premium materials and a sensored setup, the Pro4 HD BL 1850kV provides the control, consistency and power needed for confident performance on demanding tracks.