Smith was born in Macclesfield, England where he bought his first motorcycle, a 250cc BSA.[2] By 1959, his family had emigrated to Australia and Smith began motorcycle racing against Australian riders such as Kel Carruthers and Tom Phillis.[2]
Smith won three consecutive victories in the Formula III Class at the Isle of Man TT from 1979 to 1981.[3] He has also won more Isle of Man TT races than any other Australian, 5 in total, 1968 250cc Production, 1968 50cc, 1979 Formula TT, 1980 Formula TT and 1981 Formula TT. He also won the 1979 and 1981 Formula III Class in the Formula TT world championship.[4][5] Smith also won the 125 Australian national championships in 1978 and 1981. He retired in 1983 after 25 years of competitive racing. Smith won four Grand Prix races during his career.[1]