DDR Mini Spec Frame Kit

DDR MiniSpec Frame Kit – 3.5” Spec Racing Frame

The DDR MiniSpec Frame Kit is an ultra-durable 3.5-inch drone frame, specifically designed for spec-class drone racing where all pilots compete under equal performance limits. In this format, success comes down to precision, control, and strategy—and that’s exactly what the MiniSpec is built for.

Designed by Racers, for Racers

The DDR MiniSpec Frame was designed by Sander Puh, creator of the legendary Drippuh frame—a familiar name on Dutch Drone Racing tracks.

This frame combines proven design elements from the SpeedyPizzaDrones NEC drone and the Five33 Spec7, resulting in a platform perfectly tailored for modern spec pilots: durable, precise, and built to handle intense racing conditions.

Optimized Canopy for Modern Spec Racing

The DDR MiniSpec canopy is an evolution of the SpeedyPizzaDrones NEC design and a key part of the overall MiniSpec experience.

• Optimized for HDZero Race 3
• Includes inserts for HDZero Nano 90 (13mm lens)
• Antenna mount supports:
• 
  
• Triumph Pro
• Rush Cherry II
• Foxeer Micro Lollipop
• TrueRC Singularity
• ELRS antennas

✨ New in this version:

• Dedicated slot for LED strips for full canopy illumination
• Ideal for transparent TPU printing to maximize RGB lighting effects
• Ability to match LED colors with VTX channels

The canopy is available separately or can be self-printed. STL files are available via:

👉 dutchdroneracing.com/minispec

Frame Geometry & Layout

• Size: 3.5-inch class
• Layout: True X configuration

The True X layout ensures perfect symmetry and balance in flight—giving you a competitive edge where precision matters most.

Dimensions

• Diagonal (motor-to-motor): 175mm
• Frame size: 141.5 × 141.5 × 4mm

Compact dimensions provide a lightweight and highly agile racing setup.

Mounting Pattern

Supports a 25.5 × 25.5mm stack mounting pattern, making it compatible with most standard AIO and stack electronics for a clean and reliable build.

HDZero Compatibility

Designed specifically for:

• HDZero Nano 90 Camera
• HDZero Race 3 VTX

Perfect for pilots who want high-quality digital video in a compact, high-refresh-rate racing setup.

Propeller Support

Optimized for 3.5-inch propellers, offering an ideal balance between power, efficiency, and agility within the compact race format.

Material

Constructed from high-quality carbon fiber, making the frame:

• Lightweight
• Extremely strong
• Highly durable

Built to withstand the demands of competitive racing.

Replaceable Arms

The frame features individual replaceable arms, allowing you to swap out only the damaged part instead of replacing the entire frame—saving time and cost during repairs.

Recommended DDR MiniSpec Setup

• AIO: GEPRC TAKER G4 45A AIO
• VTX: HDZero Race 3
• Camera: HDZero Nano 90
• Motor: T-Motor F1408-II 3950KV
• Propellers: Gemfan 3525 Hurricane Durable 3-Blade
• Battery: DOGCOM 850mAh 4S LiPo
• Extras: Conversion kit