This is an aftermarket front upper suspension arm set intended for the Tamiya TT01 and TT01E chassis, finished in light blue and machined from aluminium to serve as a stronger alternative to the stock plastic components.
Using aluminium upper arms changes the front suspension stiffness and the vehicle's response to steering and load transfers; expect to adjust shocks and alignment as part of tuning. The arms are produced to align with the TT01/TT01E front suspension geometry.
Fitment follows the usual TT01 upper arm replacement routine and uses the chassis' existing mounting points and hardware. Always verify compatibility with your specific TT01 or TT01E variant and double-check suspension geometry after installation.