Even though time might have passed you by, the memories of the mini bike CAT will be there with you. Get the CAT mini bike and replacement parts at OMB Warehouse. One of the most in-demand CAT mini bike has been the HPE Muskin Cat Eliminator with the 4-horsepower Briggs & Stratton and the high rise handlebars that are today hard to get. A CAT mini bike is not about the little 50cc Hondas, Yamahas and the Suzukis, which are usually just smaller versions of their larger bikes. We are talking about the mini-bikes that came straight out of the go-cart culture of the 1960s and 1970s. A mini bike CAT came straight out of the go-cart culture of the 1960s and 1970s. The first mini-bikes were made from parts scavenged from lawnmowers and tubular steel bent into a rudimentary but sturdy frame. They had the same 2- or 3-horsepower Briggs & Stratton, or Tecumseh, engines that were fitted to lawnmowers and go-carts. What they ended up with was a bare-bones mini-bike with a low center of gravity, knobby wheels and an engine with more than enough torque to race up dunes and forest trails.