Speed Twin Gas Tank Swap

As far as I'm aware the Speed Twin 900 fuel tank has remained unchanged since it began life on the Street Twin. I very much doubt the tank is a straightforward swop onto the Speed Twin 1200.
I find one of the best ways to get answers to questions like this is to ask the technicians (or mechanics as they used to be known) at the dealers who actually work on these bikes. It's no good phoning Triumph. They won't tell you even if they know.

 

I asked the reverse question of one of the Triumph design engineers whilst at an event at The Triumph Factory a couple of years ago. And got a very firm no.

The Speed Twin 1200 uses a different frame from the Speed Twin 900 (formerly Street Twin/Cup/Scrambler). The problem is the distance between the front tank mounts (that slide onto the frame) and the rear bolt mount, and also how long the rear mount projects from the tank itself (which is covered by the front of the seat).

Your quest for aesthetics would also cost you in fuel tank range; the Speed Twin 900 Tank is 2.5litres smaller.

Haven't got a clue about the clocks but personally I'd rather have the classic twin dial look.

Enjoy your ride

 

I knew you'd know

 

Yeah, I'm sad that way