This Big Rig version of the HiSpeed 1/8th nitro monster truck looks awesome and has performance to match. This a large 1:8 scale nitro big rig that features a two speed automatic gearbox, three differentials with hardened gears and a fast SH .21 nitro engine. This awesome monster truck is packed with features including a solid aluminium chassis, extra large fuel tank, upgraded aluminium parts and over-sized knobbly off-road tyres. The exhaust has been upgraded to a beautiful polished aluminium version which works with the SH race engine to give serious power.