Off-road wheels and tires are the most important part of any 4x4 vehicle. The spacers employed should be strong, but also very light to minimize unsprung weight. The stores stock the 4x4 wheel accessories and wheel parts which are tough, durable and resistant to chipping, scratching and oxidation. 4x4 wheels and 4x4 tires are the foremost requirement of any car enthusiast and there is a huge market out there for 4wd wheels.