Originally Posted by Adv Grifter
Right, a smaller V-twin would be very cool.
Have you ridden a 525/530 on the highway? Not the whole world is single track. I've ridden the 525 and it nearly crippled me ... as bad as the 640.
The 690 by contrast is quite smooth up to about 80 mph. After that vibes creep in. The 690 is also gear taller ... so better road bike. But you pay some extra weight.
690 isn't as high strung either, so you don't have the crazy service intervals. Based on the factory recommendations, you'd do an oil change every night on the TAT. Whereas on the 690 you'd only do 1.