In 1987, the Italian motorcycle manufacturer released the Aprilia ETX 350, a naked off-road motorcycle part of the ETX series that debuted in 1984 with the Aprilia ETX 125. Compared to the smaller 125cc model with a two-stroke engine, the larger 350cc version had a four-stroke unit.
The Aprilia ETX was a line of off-road motorcycles made by Aprilia in Noale, Italy, from 1984 to 2001. The bikes were manufactured in three versions: the 125cc model with a two-stroke engine and the 350cc and 600cc versions with four-stroke engines.
The 1987 ETX350 had standard features, such as wire-spoke wheels, a high-mounted front mudguard, a small front cowl with a square headlight and a small windscreen, a one-piece dual seat, a luggage rack, and an under-seat-mounted exhaust system.
The bike was made around a steel frame with a hydraulic telescopic fork handling the front suspension and an adjustable shock absorber controlling the rear end, providing optimum suspension performance and handling.
As for the braking power, the bike packed a 260 mm disc mounted on the front wheel and a 230 mm disc mounted on the rear wheel, delivering optimum stopping performance.
Power-wise, the 1987 Aprilia ETX 350 had installed a 349cc four-stroke single-cylinder air-cooled engine managed by a Dell'Orto carburetor, boasting 33 hp with a peak force at 7,500 rpm and 28 Nm (21 lb-ft) torque at 6,250 rpm.