CNC duralumin gearbox V2 8mm QSC RetroArms (version 2025)

🛠 CNC machining from 7075-T6 aluminum

• Aviation aluminum = very strong and at the same time light (up to 2x lower weight than conventional gearboxes)
• Much more durable than conventional die castings or zinc alloys.

🔧 Quick Spring Change System (QSC)

• Allows quick spring replacement without the need to completely disassemble the gearbox.
• Ideal for easily adapting performance to different course rules.

🔩 Reinforced construction

• Reinforced areas around critical points (gearbox front, bearings).
• Together with the material and technology used, it is practically indestructible even under high loads.

⚙️ High processing accuracy

• The gearbox is milled with extreme precision. And even a layman can really recognize this quality :)
• It ensures better wheel alignment , which results in higher efficiency (better cadence, quieter operation and lower battery consumption) and a longer lifespan.

🧲 Compatibility with 8 mm bearings

🎨 Anodized surface

• It provides corrosion resistance , greater durability and gives the gearbox its appearance.