The CBR125 R preceded the NSR125 & in it's youth used a carburettor until it matured and then it changed to fuel injection in 2007. Smaller version of the CBR600 this four stroke single, is far better than any other bike from it's class, in price and strength, The speedometer tends to give higher readings than you're doing, so 85mph could be more like 75mph but the CBR125 R goes well for a bike with such a small feel.