RCAWD Upgrades Losi Promoto-MX Series - Swing Arm Installation Demonstration 

In the video, we show in detail how the Swing Arm looks and functions.
Features:
Size：167*102mm
Aluminum alloy adjustable wheelbase design, rear wheel distance can be adjusted by screws
video：‪@RunThatRC‬
link：rcawd.com/prod...
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