We review the TGB Blade 550 AR IRS 4X4 as a useful farm ATV. The TGB Blade proved exceptionally handy over the weekend around the farm,. The TGB is a 503cc 4 stroke single engine quad that has low and high range with a front diff lock running through a CVT. The 300mm of ground clearance, independent rear suspension and diff lock make this a great versatile farm bike for rough terrain.