A new 17mm wheel hex adapters for truggies such as the ones from Mugen and SWorkz. They are of a dual lock design with the usual grub screw that retains the cross pins but the hubs also feature a groove to fit the supplied rubber O-rings in for improved security and reliability. The hubs are machined from high quality aluminium, they come black anodised  11.5mm  offset specification to alter the vehicle’s track width.