Access Xtreme Enduro 450 EFI - 2026 Specifications and Reviews

The 2026 Access Xtreme Enduro 450 EFI is a capable mid-size ATV designed for adventure-focused riders seeking versatility across varied terrain. Powered by a liquid-cooled 448cc single-cylinder four-stroke engine with EFI technology, it delivers reliable performance with modern fuel management. Its five-speed manual transmission with reverse gear and chain drive make it equally suited for trail riding and utility work.

2026
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General information

Color OptionsBlack, grey
CategoryATV
ModelAccess Xtreme Enduro 450 EFI

Engine and Transmission Specifications

StartingElectric
Final DriveChain (final drive)
Gearbox5-speed
Cooling SystemLiquid
Ignition16-BIT ECU
Fuel ControlOverhead Cams (OHC)
InductionInjection. 42mm
Valves Per Cylinder4
Compression Ratio11.8:1
Capacity:448.8 ccm (27.39 cubic inches)

Physical measures and capacities

Fuel Capacity14.80 litres (3.91 US gallons)
Wheelbase1270 mm (50.0 inches)
Ground Clearance120 mm (4.7 inches)
Overall Width1230 mm (48.4 inches)
Overall Length1870 mm (73.6 inches)
Overall Height1150 mm (45.3 inches)
Seat Height870 mm (34.3 inches) If adjustable, lowest setting.
Dry Weight217.0 kg (478.4 pounds)
 
 

Access Xtreme Enduro 450 EFI dimensions and frame

Rear BrakesSingle disc
Front BrakesDouble disc
Rear Tyre20/11-9
Front Tyre21/17-10
Rear SuspensionSwingarm
Front SuspensionDual A-Arm

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay
Update specsReport missing specs or required updates.
CommentsModel id: SP450EFI.
DrivelineWith reverse
Lubrication systemWet sump
Engine typeSingle cylinder, four-stroke
Model year2025

Performance Profile & Rider Fit

Best For

Track10%
City15%
Cornering40%
Daily Riding20%
Touring15%
Passenger5%

Rider Profile

Best ForThis ATV is a mismatch for a 'rider profile' framework built around motorcycles, but treating it as a utility/sport quad, it suits riders with at least some prior off-road or ATV experience rather than complete beginners.
PurposeIt is built as a recreational and light-duty off-road quad for trail riding and rough terrain rather than speed or highway use.
Rider FitAt 217 kg dry weight with a wide 1230mm stance and 870mm seat height, it demands moderate physical strength and confidence handling a heavy, wide vehicle over uneven ground.
CharacterThe single-cylinder 450cc engine, dual A-arm front suspension, and reverse gear give it a rugged, no-nonsense trail-taming character focused on control and traction over outright speed.
Not Ideal ForIt is not suited for riders wanting road-legal touring, high-speed performance, or a lightweight, easily flickable machine for tight city use.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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