What size off-road skateboard wheels came standard on my board?

The standard size off road skateboard wheels that came on our Hadean, GTR, GT and GTX Series was the 7 inch (175mm), with the 66T drive gears. Our later Gen2 series came standard with 8 inch tyres which we do not stock anymore. If you require replacement 8 inch tyres or inner tubes, we recommend enquiring with our retailers or visiting the MBS website.