the TR65 engine is triumph´s best- it really loves to rev and pulls nicely if not as powerfully as the T140: it´s not a cheap T140 as some might say but a different motorcycle altogether with an entirely different unique character even from the 6T T-bird of the 40s,50s and 60s: if you´ve not done so already, you must buy one and try one -not for the speed but for how it feels !