Aprilia 125cc Models

Aprilia 125 MX 1981

Aprilia 1981 125MX

Engine
Hiro Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 31 h.p. at 11,000 rpm. Carburettor : Mikuni 34 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Steel double cradle. Fork : Classic Marzocchi 35 mm. Travel : 270 mm. Rear Suspension : Corte-Cosso shocks. Travel : 310 mm. Brakes: Front 125 mm drum. Rear 125 mm drum. Weight : 92 kg dry. Tank capacity: 7.5 litres

Aprilia 125 MX 1982
Engine
Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 52.8 x 57 mm, 124.8 c.c. Power : 30 h.p. at 11,200 rpm. Torque : 2.05 kgf.m at 10,200 rpm. Carburettor : Dellorto 34 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Steel double cradle. Fork : Marzocchi air-charged. Travel : 305 mm. Rear Suspension : APS monoshock. Travel : 330 mm. Brakes: Front 125 mm drum. Rear 125 mm drum. Weight : 102 kg (wet). Tank capacity: 8.5 litres

Aprilia 125 MX 1984
Engine
Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 34 h.p. at 10,750 rpm. Carburettor : Dell'Orto PHBE 36 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Steel double cradle. Fork : Marzocchi air fork. Rear Suspension : APS White Power monoshock. Brakes: Front 125 mm drum. Rear 125 mm drum. Weight : 92 kg dry. Tank capacity: 8.5 litres

Aprilia 125 MX 1985
Engine
Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 34 h.p. at 10,750 rpm. Carburettor : Dellorto 36 mm. Gearbox : 5-speed. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Steel double cradle. Fork : Marzocchi M1 42 mm. Travel : 300 mm. Rear Suspension : Öhlins APS monoshock. Travel : 315 mm. Brakes: Front 230 mm disc. Rear 125 mm drum. Weight : 89 kg dry. Tank capacity: 8.5 litres

Aprilia 125 RC 1981
Engine
Air-cooled single-cylinder two-stroke. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 29 h.p. at 11,000 rpm. Carburettor : Dellorto 34 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Double cradle. Fork : Marzocchi classic 35 mm. Travel : 270 mm. Rear Suspension : Corte-Cosso (dual, inverted)| Travel : 280 mm. Brakes: Front 140 mm drum. Rear 140 mm drum. Weight : 96 kg dry. Tank capacity: 7.8 litres

Aprilia 125 RC 1982
Engine
Air-cooled single-cylinder two-stroke. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 31 h.p. at 11,200 rpm. Torque : 2.1 kgf.m at 9,000 rpm. Carburettor : Dellorto 34 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Double cradle. Fork : Marzocchi classic 35 mm. Travel : 270 mm. Rear Suspension : Corte-Cosso shocks. Travel : 320 mm. Brakes: Front 140 mm drum. Rear 140 mm drum. Weight : 96 kg dry. Tank capacity: 7.8 litres

Aprilia 125 RX 1983 (Enduro)
Engine
Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 34 h.p. at 10,750 rpm. Carburettor : Dellorto 36 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis

Frame : Steel double cradle. Fork : Classic Marzocchi 40 mm. Travel : 305 mm. Rear Suspension : WP APS System. Travel : 330 mm. Brakes: Front Twin-cam drum. Rear Twin-cam drum. Weight : 110 kg (wet). Tank capacity: 8.5

Aprilia 125 RX 1984 Enduro
Engine
Liquid-cooled 2-stroke single-cylinder. Bore x Stroke : 54 x 54 mm, 123.6 c.c. Power : 34 h.p. at 10,750 rpm. Carburettor : Dellorto 36 mm. 6-speed gearbox. Cable-actuated clutch. Kick-starter.
Chassis
Frame : Steel double cradle. Fork : Marzocchi 40 mm, 305 mm travel. Rear Suspension : WP APS System, 330 mm travel. Brakes: Front twin-cam drum. Rear twin-cam drum. Weight : 110 kg (wet). Tank capacity: 8.5 litres

1984 STX125

Enduro. 6 speed gearbox, wet clutch, 32mm forks with 140mm travel, APS rear monoshock, disc front and drum rear brakes.