Overview
The Sub250 DollyFly25 O3 Frame Kit and Frame Part set is a compact FPV frame kit and replacement frame parts package built around a 120mm wheelbase with support for 2.5 inch propellers. It provides 25*25mm mounting for both the flight controller (FC) and VTX, supports a 20mm camera size, and uses a 9mm x 9mm motor mounting pattern.
Key Features
- 120mm wheelbase micro frame layout for 2.5 inch propellers
- 25*25mm mounting for FC and 25*25mm mounting for VTX
- Supports 20mm camera size
- Top plate thickness: 2.0mm; bottom plate thickness: 2.5mm
- Kit includes a hardware set and Sub250-branded accessories (sticker set and battery straps)
Specifications
| Frame | Sub250-DF25 Frame |
| Wheelbase | 120mm |
| Top plate | 2.0mm |
| Bottom plate | 2.5mm |
| FC dimension | 25*25mm |
| VTX dimension | 25*25mm |
| Motor dimension | 9mm x 9mm |
| Camera size | 20mm |
| Propellers | 2.5 inch propellers |
| Weight | 80g ±2g |
What’s Included
- Sub250-DF25 frame parts set (frame plates and guards as shown)
- Sticker set (Sub250 logos)
- Battery straps (Sub250)
- Hardware set (screws, nuts, standoffs/spacers, and small accessories as shown)
- Allen key
- Wire leads and small cables as shown
For pre-sales compatibility questions (FC/VTX stack height, camera fit, and build guidance), contact https://rcdrone.top/ or support@rcdrone.top.
Details

Everything needed to start a DollyFly25 build, including frame plates/guards, Sub250 straps and stickers, plus a full hardware set and leads.
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