Designer	Pier Luigi Marconi	Premiere	Milan 1995
Production period	1996 – 1997	Production numbers	148
Power	37 KW (50 PS)	Displacement	652 cc
Topspeed	196 km/h	Weight	wet 160 kg dry 148 kg
Price	20.650 DM (1996)	Colours	blue
Technical basis	BMW F650

In November 1995, Bimota unveiled the BB1 Biposto at the Milan Motorcycle Show as a two-seater version of the BB1 Supermono. The Biposto received a new steel rear subframe with bolted-on passenger footpegs and a redesigned monocoque, which could be used either with a passenger seat or a cover.

Overall, the changes compared to the Supermono were limited to a new solid-color paint scheme, new triple-spoke Antera aluminum wheels, and now-visible Lafranconi exhaust silencers.

The market success of the BB1 Biposto remained modest, with only 148 units produced. Less than one in three BB1 buyers opted for the two-seater. Nevertheless, with a total of 524 units built, the exotic BB1 was relatively successful.

Some customers used it as a base for the Sound of Singles (SoS) racing series, which was founded in 1989. As a result, Bimota offered a factory racing kit for around 10,000 DM, including magnesium wheels, upgraded suspension components, and engine tuning. With a maximum displacement of 752 cc and fuel injection, the race-tuned engine could produce up to 75 hp.