At the heart of the 2005 Aprilia Tuono 125 sport motorcycle, Aprilia utilizes a 124.8 cc (7.6 cu in) liquid-cooled single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 54.0 x 54.5 mm (2.1 x 2.1 inches) with a 12.5:1 compression ratio.
Rider ergonomics and chassis geometry center around a 805 mm (31.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance, combined with a 1,345 mm (53 in) wheelbase engineered for quick, flickable steering geometry.
Within MotoLibrary's Aprilia archive, this model family spans 11 indexed model years from 2004 to 2025, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Emission DetailsCatalysed. Conforms to Euro 2 standards.
ExhaustCatalysed. Conforms to Euro 1 standards.
Chassis
Frame TypeCast aluminium sloping twin-spar with thin walled structural shell and cross rib reinforcement
Front SuspensionUpside-down hydraulic action telescopic fork, 40 mm Ø inners.
Front Travel120 mm (4.7 inches)
Rear SuspensionCast aluminium swing-arm with asymmetrical members and thin walled structural shell. Hydraulic monoshock with adjustable spring preload.
Rear Travel120 mm (4.7 inches)
Wheelbase1345 mm (53.0 inches)
Wheels & Brakes
Front Tyre110/70-17
Rear Tyre150/60-17
Front BrakesSingle disc
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc
Rear Brake Ø220 mm (8.7 inches)
Dimensions & Weight
Seat Height805 mm (31.7 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.
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.
