14 August. Friday 2026
Access Xtreme Supermoto 450 EFI - 2025 Specifications and Reviews
The 2025 Access Xtreme Supermoto 450 EFI is a versatile single-cylinder, four-stroke machine designed for riders seeking agile handling and reliable performance. Powered by a 449cc fuel-injected engine with overhead cams and modern ECU technology, it excels in both on-road and light off-road conditions. Best suited for intermediate riders valuing maneuverability and everyday practicality.
2025
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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