At the heart of the 2023 Fantic XEF 450 Rally Factory enduro - offroad motorcycle, Fantic pairs a 450 cc (27.5 cu in) liquid-cooled single cylinder, four-stroke architecture with road-focused gearing. Internal engine geometry specifies a bore and stroke of 97.0 x 60.8 mm (3.8 x 2.4 inches) with a 13.0:1 compression ratio.
On the scales, the XEF 450 Rally Factory measures 138.5 kg (305 lbs) wet (curb). Rider ergonomics and chassis geometry center around a 955 mm (37.6 in) seat height — reflecting a long-travel chassis stance that favors ground clearance and off-pavement control, combined with a 1,480 mm (58.3 in) wheelbase engineered for balanced agility and highway composure. The 30-liter (7.9 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Fantic archive, this model family spans 2 indexed model years from 2023 to 2024, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Standover Height
955 mm (37.6 in)
Engine
Displacement450.0 ccm (27.46 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsYamaha
Compression13.0:1
Bore x Stroke97.0 x 60.8 mm (3.8 x 2.4 inches)
Fuel SystemInjection
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionTC!
LubricationWet sump
CoolingLiquid
Transmission
Gearbox5-speed
Final DriveChain (final drive)
ClutchWet multi-disc
Performance
Emission DetailsEuro 5
ExhaustTitanium
Chassis
Frame TypeAluminum perimeter
Rake27.2°
Trail116 mm (4.6 inches)
Front SuspensionKYB 48 mm, fully adjustable
Front Travel310 mm (12.2 inches)
Rear SuspensionAluminum swingarm with variable section and progressive link. KYB, fully adjustable
Rear Travel300 mm (11.8 inches)
Wheelbase1480 mm (58.3 inches)
Wheels & Brakes
Front Tyre90/90-21
Rear Tyre140/90-18
Front BrakesSingle disc
Front Brake Ø300 mm (11.8 inches)
Rear BrakesSingle disc
Rear Brake Ø245 mm (9.6 inches)
Dimensions & Weight
Weight incl.138.5 kg (305.3 pounds)
Seat Height955 mm (37.6 inches) If adjustable, lowest setting.
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
