Had a bug for the Kawi Z900rs, went to look at the Speed Twin. The ridding position of the RS and the ST were similar, with the ST getting the nod for "just nicer". Wound up on the T120 with the riding position more to my liking, just a better fit.
The Speed Twin is lighter, and has more power. Also alloy wheels that accommodate tubeless tires. It strikes me as a cross between the T120 and the Thruxton. I'm liking mine; comfortable ergonomics, good power, decent handling. It's a great bike when you just want to go for a ride.
From one of my previous posts... I own both a 2018 T120 and a 2019 Speed Twin. The T120 is like a vintage precision machine tool of your dad’s. Durable, solid, feels built for life. It’s a joy to run through the gears and feel that sweet engine pull you up and down the rev range. It’s genius for two-up riding and thus of the dozen or so bikes I’ve owned over the years it is my wife’s favorite. The Speed Twin is the sports car version of the T120. It feels up on its toes, minimal, essential. The gearbox is snickety snick and in Sport mode the acceleration is hilarious. During my extended test ride I forgot about the modes and was riding around in Road for about half an hour. Then I switched to Sport and that sealed the deal. I went back to the dealer and signed papers. I’ve ridden the Thruxton a couple of times, but for some reason didn’t get on with it. The Speed Twin fits me like a favorite set of trainers. If the T120 Bonneville was shoes it would be your favorite lace-up boots, polished to a perfect shiny finish.
