The most striking difference lies in its styling. The Thruxton 400 features a half fairing, clip-on bars, bar-end mirrors, a remote brake reservoir, a black USD fork instead of the golden one on the Speed 400 and refreshed side panels adorned with Thruxton badging with added brushed aluminium accents. It also sports a single-seat configuration as standard, complete with a rear cowl. Interestingly, the cowl is removable and unlocks to reveal a pillion seat, which is complemented by a black grab rail. 

 

The Thruxton 400 is available in four colours-- Yellow, Red, White and Black-- all with a diagonal stripe in contrasting colour.