30 June. Tuesday 2026
Xtreme Supermoto 450 EFI - 2026 Specifications and Reviews
The 2026 Access Xtreme Supermoto 450 EFI is a versatile mid-size ATV designed for riders seeking a balance of agility and power. Its 449cc single-cylinder four-stroke engine delivers reliable performance with modern EFI technology and liquid cooling. Built for trail enthusiasts and recreational riders, this machine excels in mixed terrain with its responsive handling and practical 5-speed transmission.
2026
General information | |
| Color Options | Black, grey |
| Category | ATV |
| Year | 2025 |
| Model | Access Xtreme Supermoto 450 EFI |
| | |
Engine and Transmission Specifications | |
| Starting | Electric |
| Final Drive | Chain (final drive) |
| Gearbox | 5-speed |
| Cooling System | Liquid |
| Ignition | 16-BIT ECU |
| Fuel Control | Overhead Cams (OHC) |
| Induction | Injection. 42mm |
| Valves Per Cylinder | 4 |
| Compression Ratio | 11.8:1 |
| Engine Type | Single cylinder, four-stroke |
| Capacity | 448.8 ccm (27.39 cubic inches) |
Physical measures and capacities | |
| Fuel Capacity | 14.80 litres (3.91 US gallons) |
| Wheelbase | 1270 mm (50.0 inches) |
| Ground Clearance | 120 mm (4.7 inches) |
| Overall Width | 1230 mm (48.4 inches) |
| Overall Length | 1870 mm (73.6 inches) |
| Overall Height | 1025 mm (40.4 inches) |
| Seat Height | 870 mm (34.3 inches) If adjustable, lowest setting. |
| Dry Weight | 216.0 kg (476.2 pounds) |
Xtreme Supermoto 450 EFI dimensions and frame | |
| Rear Brakes | Single disc |
| Front Brakes | Double disc |
| Rear Tyre | 225/40-9 |
| Front Tyre | 165/70-10 |
| Rear Suspension | Swingarm |
| Front Suspension | Dual A-Arm |
Other specs | |
| Related bikes | List related bikes for comparison of specs. |
| Ask questions | Join the 25 Access Xtreme Supermoto 450 EFI discussion group or the general Access discussion group. |
| Maintenance | Find parts, fluids. filters, maintenance tools and service manuals at Amazon.com. |
| Insurance costs | Compare US insurance quotes from the nation's top providers. |
| Update specs | Report missing specs or required updates. |
| Comments | Model id: SP450SM EFI. |
| Driveline | With reverse |
| Lubrication system | Wet sump, oil pump |
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