| ATK GT250 | ARCH MOTORCYCLE 1S |
|---|
| engine specs | |
| Type | |
|---|---|
| air-cooled, four-stroke, 75-degree V-Twin, DOHC, 4 valves per cylinder | S&S Cycle T124 45-degree downdraft fuel-injected V-Twin engine |
| Displacement | |
| 249 cm3 | 2032 cm3 |
| Bore X Stroke | |
| 2.2x1.9 in OR 56 mm | - |
| Compression Ratio | |
| 10.3:1 | - |
| Horsepower | |
| 27/10500 KW(hp)/RPM | - |
| Torque | |
| 17/8000 lb-ft/RPM OR 23/8000 Nm/RPM | 115.3/- lb-ft/RPM OR 156/- Nm/RPM |
| Fuel System | |
| EFI | EFI |
| transmission specs | |
| Gearbox | |
|---|---|
| 5-speed, manual | 6-speed |
| Clutch | |
| wet multi-disc, manual | Compact dry clutch |
| Final Drive | |
| chain | Chain |
| chassis specs | |
| Frame | |
|---|---|
| aluminium | Tubular steel frame with CNC-machined aluminum subframe single-sided swingarm |
| Front Suspension | |
| 41mm upside-down fork | Fully adjustable ARCH/Öhlins FGRT series fork |
| Rear Suspension | |
| adjustable monoshock | Fully adjustable ARCH/Öhlins rear shock with reservoir and hydraulic pre-load adjustment |
| Front Brake | |
| dual 300mm discs, 2-piston calipers | Dual ISR 6-piston monobloc radial mount calipers with ISR floating dampened discs |
| Rear Brake | |
| single 230mm disc, 2-piston caliper | Single ISR 4-piston monobloc radial mount caliper with ISR semi-floating disc |
| dimension specs | |
| Overall Length | |
|---|---|
| 82.5 in OR 2096 mm | - |
| Seat Height | |
| 32.5 in OR 826 mm | 31.5 in OR 800 mm |
| Ground Clearance | |
| 7 in OR 178 mm | - |
| Weight | |
| 359 lbs OR 163 kg | 563 lbs OR 255 kg |
| Fuel Capacity | |
| 4.5 gallons OR 17.0 L | 4.5 gallons OR 17.0 L |
| Wheelbase | |
| 56.5 in OR 1435 mm | 65.4 in OR 1661 mm |
| tyres specs | |
| Front | |
|---|---|
| 110/70-ZR17 54H | 120/70-17 Michelin Power RS |
| Rear | |
| 150/70 ZR17 69H | 240/45-17 Michelin Power RS |
