| DUCATI ST4 | ARCH MOTORCYCLE 1S |
|---|
| engine specs | |
| Type | |
|---|---|
| Liquid cooled, four stroke, 90 degrees L-twin cylinder, DOHC, Desmodromic 4 valve per cylinder | S&S Cycle T124 45-degree downdraft fuel-injected V-Twin engine |
| Displacement | |
| 916 cm3 | 2032 cm3 |
| Bore X Stroke | |
| 3.70x2.59 in OR 94 mm | - |
| Compression Ratio | |
| 11.0:1 | - |
| Horsepower | |
| 105/9000 KW(hp)/RPM | - |
| Torque | |
| 65.6/7500 lb-ft/RPM OR 89/7500 Nm/RPM | 115.3/- lb-ft/RPM OR 156/- Nm/RPM |
| Fuel System | |
| Marelli electronic fuel injection | EFI |
| transmission specs | |
| Gearbox | |
|---|---|
| 6-speed | 6-speed |
| Clutch | |
| - | Compact dry clutch |
| Final Drive | |
| Chain | Chain |
| chassis specs | |
| Frame | |
|---|---|
| - | Tubular steel frame with CNC-machined aluminum subframe single-sided swingarm |
| Front Suspension | |
| Showa 43mm upside-down fully adjustable fork | Fully adjustable ARCH/Öhlins FGRT series fork |
| Rear Suspension | |
| Progressive Linkage With Fully adjustable Sachs monoshock with piggy back aluminum swing arm | Fully adjustable ARCH/Öhlins rear shock with reservoir and hydraulic pre-load adjustment |
| Front Brake | |
| 2x320mm discs 4 piston calipers | Dual ISR 6-piston monobloc radial mount calipers with ISR floating dampened discs |
| Rear Brake | |
| Single 245mm disc 2 piston caliper | Single ISR 4-piston monobloc radial mount caliper with ISR semi-floating disc |
| dimension specs | |
| Seat Height | |
|---|---|
| 32.3 in OR 820 mm | 31.5 in OR 800 mm |
| Weight | |
| 474 lbs OR 215 kg | 563 lbs OR 255 kg |
| Fuel Capacity | |
| 5.5 gallons OR 20.8 L | 4.5 gallons OR 17.0 L |
| Wheelbase | |
| 56.3 in OR 1430 mm | 65.4 in OR 1661 mm |
| tyres specs | |
| Front | |
|---|---|
| 120/70-ZR17 | 120/70-17 Michelin Power RS |
| Rear | |
| 180/55-ZR17 | 240/45-17 Michelin Power RS |
