Monster Bash With The ARRMA 4×4 Mega Granite [VIDEO] Trevor Duncan Action, Product News, Videos, View all Comments From ARRMA RC: The ARRMA 4×4 MEGA GRANITE hits the BMX track! Giving stable fun handling on a range of surfaces, soaking up jumps with its oil filled dampers and gripping hard with dBoots FORTRESS tyres. Visit ARRMA-RC.com See more posts about ARRMA RC Subscribe today with a Digital Edition subscription or Print + Digital combo! Never miss an issue of RC Car Action! Subscribe today with a Digital Edition subscription or Print + Digital combo!