Jak 2 Haven City Zoomer

I have recreated this "Zoomer" from Jak 2 (PlayStation 2 Game developed by Naughty Dog) following the original concept art from the game.
In the game the Zoomer is a flying motorbike-like vehicle used by the population of Haven City to move around the city.
I have done the model and some shaders but the main rusty shader was made by Zantique and can be found here: https://www.blendswap.com/blend/18474