Description
Spring Set Overview:
Upgrade your Losi® Promoto®-SM with these high-quality steel Lean Bar Springs for improved performance. Designed for durability and compatibility, they also fit the Losi Promoto-SM seamlessly.
About Losi
Losi
Since 1980, the Losi® brand has been dedicated to R/C racing. Initially, standard R/C cars weren’t built for racing or durability, so Losi started selling upgrade parts to withstand off-road tracks, fueling the sport’s popularity. Until the early 2000s, the brand remained focused on competitive R/C cars, understanding the thrill of speed, precision, and dedication required to succeed in racing.
Features:
- Multiple thicknesses of lean bar for tunability in turns
- Designed for both the Promoto SM and MX platforms
- High-quality steel construction
- Provides a seamless fit for hassle-free installation





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