Product Review

Features:
550 motor size, 3.175mm output shaft.
Virtually maintenance-free operation and long-lasting performance.
Heat-resistance running motors allow faster speeds, longer runtime, and extended motor life.
Precision balanced rotor, smoothness for best reliability and maximum RPM.
Suitable for HSP HPI Wltoys Kyosho TRAXXAS brushed 1/10 RC car.

Specifications:
Brand name: SURPASS HOBBY
Color: Black
Size: 550
Turns: 35T
Watts: 600W
Max voltage: 7.2V
Max Amps: 20A
IO: 1.4A
Resistance: 0.0043
KV(RPM/Volt): 35T
Max RPM: 9500
Diameter: 35.6mm
Length: 57.5mm
Length of extend shaft: 16.5mm
Shaft diameter: 3.175mm
Connector: 3.5mm gold
Weight: About 233g

There may be some deviation due to manual measurement.

Package information:
Package size: 11.2 * 7 * 4.2cm / 4.4 * 2.75 * 1.65in
Package weight: 264g / 9.3oz

Package list:
1 * 550 35T Brushed Motor