Most Tamiya F104 based car kits, when run with rubber tires are actually around 184mm wide. With this spacer set, you can adjust your front and rear track width in 0.5mm increments.
Team RSD/ TRG USA Driver Cristian Tabush used this widening kit to adjust his F1 at the 2012 ROAR Carpet Nationals to set the Top Qualifying time and fastest lap in the Formula 1 class, all while staying within the ROAR Maximum width of 190mm on his TRG 111.
The set includes:
-2x 0.5mm Front Axle Shims
-2x 1.0mm Front Axle Shims
-2x 1.5mm Front Axle Shims
-2x 2.0mm Front Axle Shims
-2x 0.5mm Rear Axle Shims
-4x 1.0mm Rear Axle Shims