RCINPower EVO 0702 Micro Motor

The RCINPower EVO 0702 is a featherweight 1S brushless motor for 65 mm tiny whoops on 1.2-inch tri-blade props, built for indoor racing and freestyle. At 1.15 g without wires it is one of the smallest brushless motors in FPV. Sold singly; a quad needs four.

Key features

• 7 x 2 mm 9N12P stator with thin 0.1 mm laminations to cut magnetic losses
• 1.0 mm shaft on twin NMB 681Z2Z bearings
• Peak efficiency above 84% in the 1-2 A range, covering low and mid throttle
• 31800KV (green and pink): easier on the battery for longer flights, up to 41 g thrust at 5.3 A; the all-round pick
• 33800KV (blue and gold): faster spin-up and about 2 g more thrust for roughly 0.3 A more current; for all-out racing on high-discharge 1S packs

Specifications

• KV: 31800 / 33800
• Max current: 5.4 A / 5.7 A
• Max power: 22.7 W / 23.9 W
• Max thrust (4.2 V, 1.2-inch prop): 41 g / 43 g
• Internal resistance: 135 mΩ (31800KV)
• Configuration: 9N12P
• Stator: 7 x 2 mm, 0.1 mm laminations
• Shaft: 1.0 mm diameter, 3.45 mm long
• Bearings: 2x NMB 681Z2Z
• Motor size: 9.6 x 7.8 mm
• Mounting: 3x M1.4 on a 6.6 mm circle
• Weight: 1.15 g without wires
• Cells: 1S

The 6.6 mm three-hole pattern fits standard 0702 whoop frames. Use 31 mm whoop props with a 1.0 mm hole, such as a 1.2-inch tri-blade; 1.5 mm-hole props will be loose.