Happymodel EX1103
Listed as: Happymodel EX1103 (4 Hole)
| Stator | 1103 |
|---|---|
| KV options | 7000 |
| Weight | 3.8 g |
| Shaft | 1.5mm |
| Max cells | 2-3S |
| Dimensions | Ø13.5x10 mm |
| Mount (bolt circle, mm) | Ø9 (4-M2) |
| Price (approx.) | 12.99 USD |
At 3.8 g it is right at the class average across the 5 1103-class motors in our database (avg 3.8 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 |
| HQProp 51MMX2 Ultralight | 2.0x0.9 | 2 | 0.23 g |
| Gemfan 35MMS 3-Blade | 1.4x0.96 | 3 | 0.24 g |
| HQProp 40mm Ultralight 3-Blade | 1.6x1.0 | 3 | 0.25 g |
Where this data comes from
This page is Happymodel's EX1103S 7000 KV, the 4-hole Larva X upgrade: RaceDayQuads' Includes line names '1x HappyModel EX 1103S 7000Kv', and Happymodel's EX1103S KV7000 post (2019-10-24) says 'Larva X v2 version frame were already compatible with 4-hole motors'. The listing's spec block (3.7 g, Φ13.5mm*16mm) is the text of Happymodel's earlier EX1103 post (2019-06-04), whose 7000 KV is the 'original motors for Larva X' - a sibling motor's figures, so they are not used. Figures from the EX1103S post: 9N12P, 11 x 3 mm stator, 1.5 mm shaft, 2-3S, weight 3.8 g (its block, and the gallery's scale photo reads 3.8). Its drawing (uploads/2019/10/EX1103S-e1571883836350.jpg, labelled EX1103S) prints a body of 10 mm from base to bell, a 5.2 mm shaft above the bell and 16 mm overall, on a Ø13.5 bell; dimensions_mm is the body, Ø13.5x10 - the post's text 'Motor Dimension Φ13.5mm*15.5mm' matches neither the body nor the overall length. The drawing's base view puts 4-M2 holes on a Ø9±0.05 circle (mount_bolt_circle_mm). The 1-2S this page published until 2026-10-20 was Pyrodrone's EX1103 11000 KV (Baseline) rating, filled on a shared model name. No bench rows: the EX1103 post's table covers 6000, 8000 and 12000 KV only, and the EX1103S post's six gallery images (1000x1000, read 2026-10-20) are photos and a scale, its seventh the drawing.