Astro & Grass - Dry = Yellow Mini spike (poss Stagger rib on 2wd front on Astro)
Astro & Grass - Wet = 2wd Fr Shuey Green Mini Spike, 4wd Fr & Rear Ballistic Green Mini Spike. Some Astro tracks work well with Shuey Green Mini all round when wet.
Carpet = Yellow Mini Pin
HTH
