LOS-1912 Center Driveshaft, Aluminum, 203.5mm: GROM

Losi LOS-1912 Aluminum Center Driveshaft 203.5mm GROM

The LOS-1912 is an aluminum center driveshaft designed for the GROM platform, built to replace the stock plastic shaft with a stronger, more rigid drivetrain component.

It uses CNC-machined 6061-T6 aluminum to reduce flex under load, which helps keep power delivery more consistent—especially during hard acceleration or high-speed runs. The tighter tolerances also reduce vibration compared to worn or flexing plastic shafts.

At 203.5mm length, it’s a direct-fit replacement for compatible GROM and NASCAR GROM configurations. It’s commonly chosen when upgrading for durability rather than changing gearing or performance ratios.

Key points:

• Aluminum construction for increased rigidity
• 203.5mm length direct replacement
• Reduces drivetrain flex and vibration
• Improves durability over stock plastic shaft
• Designed for GROM / NASCAR GROM setups

Quick reality check

This part is more of a strength + consistency upgrade than a performance “speed mod.” It won’t add power, but it helps the drivetrain stay stable under load and abuse.