The Bimota YB11 is a 1,002 cc four-cylinder superbike that Bimota built from 1996 to 1998, using an engine derived from the Yamaha YZF1000R Thunderace.
Bimota YB11 at a glance
| Manufacturer | Bimota, Rimini, Italy |
|---|---|
| Production | 1996–1998 |
| Engine | 1,002 cc inline-four, liquid-cooled, Yamaha YZF1000R Thunderace derived |
| Carburettors | 4 × Mikuni, 38 mm |
| Power | 145 hp at 10,000 rpm |
| Torque | 11 kgm at 8,500 rpm |
| Gearbox | 5-speed |
| Frame | Aluminium perimeter, derived from the YB8 |
| Suspension | 51 mm Paioli fork, Paioli rear shock |
| Brakes | Brembo, 320 mm front and 230 mm rear discs |
This article is based on the Italian Wikipedia article on the Bimota YB11.
History of the Bimota YB11
The YB11 was presented at EICMA in 1995 and produced from 1996 to 1998. Its 1,002 cc inline four came from the Yamaha YZF1000R Thunderace through a supply agreement and was fed by four 38 mm Mikuni carburettors. It produced 145 hp at 10,000 rpm and 11 kgm of torque at 8,500 rpm, and drove through a five-speed gearbox.
The engine had Yamaha’s Exup valve, an electronically controlled exhaust valve that varied the gas flow to improve torque delivery. The aluminium perimeter frame, with the engine as a load-bearing element, was derived from the Bimota YB8. Brembo supplied two 320 mm front discs with radial four-piston calipers and a 230 mm rear disc; the 51 mm fork and the rear shock were Paioli units, and the swingarm was aluminium.
The YB11 was the last of Bimota’s Yamaha-engined superbikes of the 1990s. It was also offered in a special anniversary edition, the YB11 25° Anniversario, which is the version shown in the video below.
Design and features
- Engine: a 1,002 cc Yamaha YZF1000R Thunderace-derived four with four Mikuni carburettors.
- Exup: an electronically controlled exhaust valve for better torque delivery.
- Frame: an aluminium perimeter frame derived from the YB8’s.
- Suspension: a 51 mm Paioli fork and a Paioli rear shock.
- Brakes: Brembo 320 mm front discs and a 230 mm rear disc.
Bimota YB11 versions
- Bimota YB11: the standard model, built from 1996 to 1998.
- YB11 25° Anniversario: a special anniversary edition.
See also: the Bimota YB9, the Bimota YB6, the Bimota YB8 and the Bimota collection.
Bimota YB11 questions and answers
What is the Bimota YB11?
A 1,002 cc Yamaha-engined superbike built by Bimota from 1996 to 1998.
What engine did the YB11 use?
An inline four derived from the Yamaha YZF1000R Thunderace, with four 38 mm Mikuni carburettors.
How much power did the YB11 make?
145 hp at 10,000 rpm and 11 kgm of torque at 8,500 rpm.
What is the Exup valve?
An electronically controlled exhaust valve that varies gas flow to improve torque.
Was there a special YB11?
Yes, the YB11 25° Anniversario edition.
Video: Bimota YB11 25° anniversario
Video by STAR BIKERS la moto per tutti on YouTube.
Sources
- Bimota YB11, Italian Wikipedia: history, engine, Exup, frame, suspension and brakes
