Some cars leave a paper trail; the Street Twin left a name and a place in Triumph's list. What follows is what can be said with a source behind it.
Its place in the line
Nearby in the Triumph catalogue sit the Triumph SD2 and the Triumph Renown.
The record
The open record for the Street Twin carries no verified engine, output, weight or price yet. MotorJury does not fill gaps with guesses; this entry gives the model a home in the catalogue and grows as sourced specifications and photographs arrive. Corrections: corrections@motorjury.com.