I had 1 at 17 1982 ish gas flowed it put big tyres on it.had 2 into 1 exhaust made it was fast but my mates gt125 suzuki was faster so you had to ride it hard and it went past the redline. it was a 1979 cb125 motorcycle twin carb front brake was crap cable operated then the change over model came out prolink cb 125 superdream restricted model 125 made around 82 on ward had to be restricted 125 made be fore this were not