| MODEL | BENELLI TNT 899S 2008 - 2009 |
| Year | 2008 - 2009 |
| Engine Type | Four stroke, transverse three cylinder, DOHC, 4 valves per cylinder |
| Displacement / Capacity | 899 cc / 54.9 cu in |
| Bore X Stroke | 88 x 49.2 mm |
| Compression Ratio | 12.5:1 |
| Cooling System | Liquid cooled |
| Max Power | 72 kW / 98 hp @ 9000 rpm |
| Max Torque | 90 Nm / 9.2 kgf-m / 66.4 lb-ft @ 5000 rpm |
| Ignition | Electronic |
| Induction | Electronic injection, 1 injector per cylinder |
| Start System | Electric |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 6 Speed |
| Clutch | — |
| Final Drive | Chain |
| CHASSIS SPECS | |
| Frame | Front ASD steel tube trellis, bolted to boxed rear section, aluminium alloy castings |
| Front Suspension | Marzocchi 43 mm upside-down fork, adjustable |
| Rear Suspension | Mono shock absorber with adjustable extension and spring load |
| Front Brakes | 2 x 320 mm discs, 4 piston calipers |
| Rear Brakes | Single 240 mm disc, 2 piston caliper |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | 790 mm / 31.1 in |
| Wheelbase | — |
| Ground Clearance | — |
| Dry Weight | 199 kg / 439 lbs |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 120/70-ZR17 |
| Rear Tyre | 190/50-ZR17 |
| FUEL SYSTEM | |
| Fuel Capacity | 16 Litres / 4.2 US gal |
| Fuel Consumption | — |
| Top Speed | — |
The 899 S is the sportier variant of Benelli's middleweight triple naked bike, identified by its orange paint scheme and an adjustable fork. Reviewers describe it as more compact and better handling than the standard roadster. It shares the 899 cc triple, trellis frame and underseat exhaust of the base TNT 899.
