FPV drone motor sizes: 1104 to 3115, shaft, prop thread and mount patterns — dimension sheet Source: Xem Studio, https://xemstudio.com/objects/fpv-drone-motors/ (CC BY 4.0) Basis: Maker spec pages (iFlight, EMAX, BrotherHobby, Hobbywing, GEPRC); T-Motor values via retailers copying its spec (marked) Catalog version: 2026-10-20 Sizes: see table below - Size code = stator diameter + height in mm (2207 = 22 mm × 7 mm stator); the can is bigger (a 2207 is about Ø29 × 32.6). - Base mount patterns: 1104 / 1404 9 × 9 M2; 1806 (and iFlight's 2205) 12 × 12 M2; 2207 / 2306 / 2306.5 16 × 16 M3; 2806.5 / 2807 / 3110 / 3115 19 × 19 M3. Use screws no longer than the frame thickness + 3 mm or they hit the windings. - Shafts: micro 1.5 mm; 22xx–31xx 5 mm with an M5 prop thread and flange nut (iFlight) — makers differ: EMAX RS2205 3 mm shaft with M5 thread, T-Motor F60 4 mm with a 5 mm prop mount. - Mount-pattern hole diameters are given as φ2 (M2) and φ3 (M3); the motor-envelope files carry tapped-size holes 3 mm deep. size example can_dia_mm length_mm shaft_mm mount weight_g 1104 T-Motor M1104 (retailer copy) None None 1.5 9×9 5.6 1404 iFlight XING2 19.9 18.4 None 9×9 M2 9.1 1806 iFlight XING2 25.2 20.3 1.5 12×12 M2 20.2 2205 iFlight XING2 28.3 29.55 5 12×12 25.2 2205 EMAX RS2205 27.9 31.7 3 (M5 thread) None 30 2207 iFlight XING2 29.08 32.6 5 16×16 M3 31.6 2207.5 T-Motor F60 Pro V (retailer copy) 26.8 31.7 4 (5 prop) None 33.3 2306 iFlight XING2 30.0 32.2 5 16×16 M3 32.5 2806.5 iFlight XING 35.06 36.8 5 19×19 M3 53.3 2807 T-Motor F90 (retailer copy) 33.4 34.7 4 or 5 None 46.6 3110 iFlight XING2 38.72 39.6 5 19×19 M3 76.4 3115 GEPRC EM3115 37.5 30 5 19×19 115 Files elsewhere (not hosted by Xem Studio; license as stated by the publisher): - iFlight: XING2 1404 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/xing2-1404-toothpick-ultralight-build-unibell-pro1482 - iFlight: XING2 1806 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/runcam-manu12/xing2-1806-fpv-motor-1-5mm-shaft-pro1466 - iFlight: XING2 2205 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/XING2-2205-Motor-Pro3744 - iFlight: XING2 2207 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/product-cat123/xing2-2207-4s-6s-fpv-motor-unibell-pro1464 - iFlight: XING2 2306 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/index.php?product_id=1465&route=product%2Fproduct - iFlight: XING 2806.5 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/index.php?product_id=1001&route=product%2Fproduct - iFlight: XING2 3110 — web — Publisher's page; dimensions are facts — https://shop.iflight.com/runcam-manu12/XING2-3110-FPV-Cinelifter-Motor-Unibell-Pro1683 - EMAX: RS2205 RaceSpec — web — Publisher's page; dimensions are facts — https://shop.emaxmodel.com/products/emax-rs2205-racespec-motor-cooling-series - Pyrodrone (T-Motor spec copy): T-Motor M1104 — web — Publisher's page; dimensions are facts — https://pyrodrone.com/products/t-motor-m1104-1104-7500kv-fpv-drone-motor-blue - GetFPV (T-Motor spec copy): T-Motor F60 Pro V — web — Publisher's page; dimensions are facts — https://www.getfpv.com/t-motor-f60-pro-v-motor-1750kv-1950kv-2020kv-2550kv.html - GetFPV (GEPRC spec): GEPRC EM3115 — web — Publisher's page; dimensions are facts — https://www.getfpv.com/geprc-em3115-motor-900kv.html Free files (CC BY 4.0, Xem Studio; STEP + STL, 10 parts): https://xemstudio.com/files/hardware/fpv-drone-motors/index.json API: https://xemstudio.com/api/geometry?object=fpv-drone-motors