The 900 SEI SPORT is a classic sport touring bike from Benelli, which has an air-cooled, four stroke engine able to develop 80 horsepower at 8300rpm and can make the bike go as fast as 201 km/h (124.9 mph). Considering the year it was launched, these performances aren't too bad and that's the reason they kept it in production for five years.
Although the Benelli 654 Sport is an old bike, being released in 1982, people are still interested in it, mostly because of its four stroke, air cooled engine which develops 60 horsepower at 8700rpm and 50 Nm of torque at 7000rpm.
Since it's a sport touring bike, you would probably expect for the Benelli 354 Sport to be very fast. Well, if you keep in mind the launch year (1981) you could easily see that the 173 km/h top speed is not that bad. The 345cc, 4 stroke inline engine develops 38 horsepower at 8500rpm.
Classic Italian bike, the Benelli Sport is not one of the most reliable bikes ever built, not even the fastest.The four stroke, air cooled engine which develops 53 horsepower at 8600rpm and 43 Nm at 7400rpm is not exactly the best in the world, but back then when it was released, it was a good compromise.