BetaFPV 0702 II

Stator	0702
KV options	30000
Weight	1.55 g
Shaft	1mm
Max cells	1S
Dimensions	Ø9x12.75 mm
Mount (bolt circle, mm)	Ø6.6 (3-M1.4)
Max thrust	37.2 g
Price (approx.)	58.99 USD

At 1.55 g it is 0.06 g heavier than average across the 11 0702-class motors in our database (avg 1.49 g).

Best props for the 0702 II

Gemfan 1210 2-blade, Gemfan 1208 3-blade or Gemfan 1219S 3-blade (31 mm whoop props, BetaFPV)

Thrust data (BetaFPV bench test)

KV	Prop	Battery	Throttle	Current	RPM	Thrust	Efficiency
30000	GF 1219S-3P	1S	10	0.22 A	—	0.71 g	0.81 g/W
30000	GF 1219S-3P	1S	20	0.76 A	—	2.91 g	0.96 g/W
30000	GF 1219S-3P	1S	30	1.37 A	—	6.5 g	1.19 g/W
30000	GF 1219S-3P	1S	40	1.9 A	—	10.0 g	1.32 g/W
30000	GF 1219S-3P	1S	50	2.47 A	—	14.36 g	1.45 g/W
30000	GF 1219S-3P	1S	60	2.87 A	—	18.75 g	1.63 g/W
30000	GF 1219S-3P	1S	70	3.3 A	—	24.0 g	1.82 g/W
30000	GF 1219S-3P	1S	80	3.8 A	—	28.6 g	1.88 g/W
30000	GF 1219S-3P	1S	90	4.23 A	—	32.4 g	1.91 g/W
30000	GF 1219S-3P	1S	100	5.15 A	—	37.2 g	1.81 g/W

Manufacturer bench figures (BetaFPV bench, 30000 KV winding on a Gemfan 1219S-3P at 1S (4 V); 10 throttle points (10-100% in 10% steps)); real-world thrust varies with ESC, battery sag and prop condition.

0702 II vs other 0702 motors on 1S

The same thrust costs different power on different motors. Each line is one maker's own bench series (1S, its own prop), drawn as grams of thrust per watt against thrust, so a higher line makes that thrust for less battery current. Throttle percent is left out on purpose: it means something different on every maker's rig.

Motor	KV	Prop	Peak thrust	At 10 g	At 20 g
BetaFPV 0702 II	30000	GF 1219S-3P	37 g at 21 W	8 W (1.32 g/W)	12 W (1.68 g/W)
BetaFPV Racing 0702	30000	GF 1207-3P	36 g at 23 W	7 W (1.4 g/W)	13 W (1.55 g/W)
VCI HOBBY 0702 Pro DB	30000	GF1219S-3	39 g at 24 W	8 W (1.26 g/W)	13 W (1.54 g/W)
VCI HOBBY 0702 Pro Lite	30000	GF1219S-3	37 g at 24 W	8 W (1.24 g/W)	13 W (1.5 g/W)
VCI HOBBY Spark 0702	29000	GF 35mm-3	25 g at 16 W	8 W (1.31 g/W)	13 W (1.56 g/W)
BetaFPV 0702SE II	27000	GF 1219S-3P	35 g at 21 W	8 W (1.27 g/W)	12 W (1.62 g/W)

Power at 10 g and 20 g is read off each maker's curve, straight-line between its two nearest bench points; 20 g is the highest thrust every motor here reached. Different props and rigs move these curves as much as the motor does, so compare rows on a similar prop. Peak thrust of every 0702 motor: 0702 motors compared. How to read a bench table: reading motor bench tables.

Thrust-to-weight with this motor

Four BetaFPV 0702 II motors at 37.2 g max thrust each give 148.8 g: 2:1, the minimum to fly, up to 74.4 g all-up; 4:1 (freestyle) up to 37.2 g; 8:1 (racing) up to 18.6 g.

RPM & prop speed on this motor

Props in this motor's class

Prop	Size	Blades	Weight
weBLEEDfpv HQ Ultralight Whoop 31MM	1.22x1.0	3	0.16 g
HQProp 40MMX2 Ultralight 40mm Micro/Whoop	1.6x1.2	2	0.2 g
Gemfan 35MMS 3-Blade	1.4x0.96	3	0.24 g
HQProp 40mm Ultralight 3-Blade	1.6x1.0	3	0.25 g
HQProp Ultralight 31MMX3 31mm Micro/Whoop	1.22x1.0	3	0.27 g

Where this data comes from

Bench rows, dimensions and the prop list are from BetaFPV's own "Outline Drawing / Load Performance" sheet image on betafpv.com/products/0702-ii-brushless-motors, the first sheet read from this manufacturer. Identity with our RaceDayQuads listing is four figures to the digit: 30000 KV, 1.55 g including the 35 mm connector, a 1 mm shaft and 1S. Max thrust is 37.2 g, the 100% row, where the page carried none. One source fact recorded rather than repaired: the table's Model cell reads "0702SE II 30000KV" where its own Outline Drawing header one panel above reads "0702 II 30000KV" - the 0702SE II is a 23000/27000 KV motor on the same page's drawing, comparison table and spec block, and the same comparison table gives the 0702 II 30000KV a Max Thrust (GF 1219S-3) of 37.2 g, which is this table's 100% row, so the sheet is the 0702 II's and the "SE" in that one cell is not. The Speed (RPM) and Coil temp columns are struck through on every row of both sheets - BetaFPV publishes neither - so every row here carries no RPM. Every row's Input (W) is voltage x current exactly and its printed Efficiency is thrust / that power to the hundredth. The outline drawing puts three M1.4 holes on a 6.6 mm bolt circle ("3-M1.4EQS", the spec block's "Hole Distance: 6.6mm"), which is a bolt circle and not a mount span, so mount_mm stays empty; it also gives the body as O9 x 12.75 mm overall, 8.55 mm of body plus a 4.2 mm shaft, a 1 mm shaft over a 1.5 mm boss and a 35 mm 30AWG JST 1.25 3-pin lead. Recommended props are BetaFPV's own list, replacing our derived whoop-prop class. One product page sells three windings: 30000 KV is the 0702 II, 23000 and 27000 KV the 0702SE II, which is our separate page.