the big thumper was paired with a 33mm Mikuni BST carb and a custom GP-inspired exhaust system terminating in a pair of underseat mufflers. The BB1 put down 48hp at 6500 rpm and 42.7 ft-lbs of torque at 6000 rpm which was enough to propel the sub-400 lb model to a top speed of around 100 mph.
The BB1 Supermono was originally created by the small marque to compete in the ‘90s Italian Supermono Championship alongside the likes of Ducati’s legendary Supermono. The race-sped BB1 used a 725cc version of the production model’s engine that was capable of delivering 75hp at 10000rpm. Unfortunately Bimota couldn’t iron out the kinks in time and the Rimini-made Rotax-powered single only went on to win a single race.
A big part of what made the Supermono so noteworthy was its top-shelf running gear and advanced chassis design. The single was constructed around an oval-section aluminum alloy tube frame and swing-arm — both of which were derived from the firm’s Mantra model — married to a 43mm Paioli fork and rear shock. The bike also got forged Marchesini rims and a single 320mm disc and four-pot Brembo caliper though a second front disc was offered as a factory add-on.
The BB1 was dressed in unmistakably ‘90s Italian bodywork. The model’s fuel-cell was actually housed in the belly-pan under the Rotax mill resulting in a very low center of gravity. A faux tank cover up top actually sports a nifty little glove compartment while providing leverage in the corners. Other trick little accouterments included carbon fiber fenders and instrument housing and front turn signals integrated into the back of the mirrors — a feature that more-than-a-decade-later became a staple on sport bikes.
In Giorgio Sarti’s book Bimota 25 Years of Excellence (Giorgio Nada Editori 1999) he explains that the Supermono was well-received in Germany and Japan though the rest of the global market showed little enthusiasm for the BB1 upon its release. This compounded with the relatively minute number of units produced makes BB1 specimens incredibly rare today especially on American shores.
With extremely light weight and potent and punchy one-cylinder engines Super-singles are some of the most enjoyable characterful and grin-inducing track day toys in existence. While there are a myriad of aftermarket kits to turn 450cc motocross bikes into lightweight road-racers none of them carry the pedigree prestige or the overall exotic appeal afforded by factory-made Italian supermonos. 
