I bought a TBS last year (main bike T'dent 309, fun bike Thruxton) and I finally decided that it is, unfortunately, slow.
Not just "not very quick" - it looks great but performance is painful and nothing short of
SHABBY - I rode a couple of others and had the thing Dyno'ed to be sure.
Like all the T309 based derivatives it is heavy and has a high C of G but 80ish bhp is just not enough so I have transplanted a "proper" 98bhp motor from a 1995 Speed Triple and it is HUGELY better - also an easy job - since all the motors fit all the bikes.....a bit of fiddling required but nothing beyond a headscratch and a cup of coffee difficult .
I had the spare motor anyway and I guess getting one up to the original T309 power would not be too hard (they can't be that different) but I was seriously thinking of selling - I can't understand why the power is so poor on a "Sport" machine.
The Thruxton is also slow but has the benefit of being light and flickable...
