![]() Painted in hot rod red, the B54 Café Racer is fast and light, and ready to carve a few canyons. Multiple versions of the bike were offered a ‘street scrambler’, MX variant, trail version, you name it. Rear suspension is via YYS shocks, and Magura brake and clutch levers are mated with a compression release and K&S switch cluster. The BSA B50 featured a 34 horsepower, 499cc four-stroke single that was actually the last large unit-construction engine that BSA sold. The gas tank is an NOS Benelli Mojave item, while the seat is a Roc City Café Racers item. 1971 BSA B50SS Claimed power: 34hp 6,200rpm Engine: 499cc air-cooled OHV single, 84mm x 90mm bore and stroke, 10:1 compression ratio Top speed: 80mph (est.) Weight (dry): 310lb (141kg) Fuel capacity/MPG: 2.5gal (9.5ltr)/45-55mpg Price then/now: 1,300 (approx. The 441 Victor engine has been modified for speed with a 32mm Mikuni carb and Pazon ignition, and exhales through a hand-built three-step ceramic-coated header and exhaust with a SuperTrapp muffler. ![]() Clearly, the B44 and B50 have race cred, enough to make a respectable café racer! This ‘B54’ café racer uses a modified B50 frame, with Betor forks and twin-leading shoe brakes. Off-road experts like Eric Cheney loved them, and BSA B50s won endurance races like the Barcelona and Zolder 24-hour races, and the Thruxton 500 mile. 1969-1970 BSA short frame flat-track racer, this bike can also be used for ice racing as well. The BSA B50 debuted in 1971, bored to a full 499cc, and even better performance. The B50 in factory-racing form and bearing the hallowed name of Gold Star, earned some racing cred in the early 70s by winning the Thruxton 500, the Barcelona 24-hour, the Zolder 24-hour, and set a class lap record at the Isle of Man TT. With light cycle parts and a light engine, the B44 had an excellent power-to-weight ratio and sparkling performance. Thunderbolt Lightning Rocket Spitfire Hornet 1964 BSA B50 T Victor 500 Trail. The 441cc engine was developed from the venerable BSA C15 roadster, which resulted in a very compact engine. This increase has been obtained by what BSA calls a full-race camshaft. Thunderbolt Lightning Rocket Spitfire Hornet 1964 BSA B50 T Victor 500 Trail Gold. The frame was an all-welded design with the oil carried inside, a half-weight version of the lugged, double-tube BSA frame renowned for solid handling. Then in 1966, BSA changed the caged ball race on the left side of the. A roadster version emerged in 1967, the B44 Victor Roadster, which retained the very light chassis of the racer, with full road equipment. The B44 and B50 single-cylinder, unit-construction models, were initially introduced as motocross racers-the B44 Victor Grand Prix of 1965. But BSA built other café racers, like the Rocket Gold Star twin, and plenty of the manufacturer’s other models have been converted to café racers by enthusiastic fans of the brand. Perhaps the most iconic café racer ever offered by a factory design remains the DBD34 Gold Star Clubman, built from 1956 to ’63.
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