14 August. Friday 2026
Access 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) |
| | |
Access 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 | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Update specs | Report missing specs or required updates. |
| Comments | Model id: SP450SM EFI. |
| Driveline | With reverse |
| Lubrication system | Wet sump, oil pump |
Performance Profile & Rider Fit
Best For
Track10%
City20%
Cornering30%
Daily Riding15%
Touring10%
Passenger5%
Rider Profile
| Best For | Note: the specifications describe a four-wheeled ATV/UTV-style off-road vehicle with reverse gear and dual A-arm suspension, not a supermoto motorcycle as the name suggests, so this profile treats it as such. |
| Purpose | Built as a sporty, single-cylinder off-road quad intended for recreational trail riding and rough-terrain fun rather than street or highway use. |
| Rider Fit | Its 216 kg dry weight and wide low-slung stance mean it demands moderate physical effort to control at speed but offers stability for less experienced off-road riders. |
| Character | The 450cc liquid-cooled single with fuel injection and reverse gear gives it torquey, accessible power suited to playful off-road maneuvering rather than outright speed. |
| Not Ideal For | This is not a suitable choice for anyone wanting a road-legal supermoto motorcycle, highway touring, or passenger-carrying comfort. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
Rider Reviews
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