Qianjiang Motorcycle Launches New Four-Cylinder Motorcycle
Qianjiang Motorcycle has unveiled its new Sai 421S model, featuring a four-cylinder engine delivering 77.5 horsepower. The motorcycle is priced starting at 28,999 yuan.

Chinese manufacturer Qianjiang Motorcycle has introduced its new Sai 421S motorcycle model. The model is available in two versions: a racing edition and a sport edition, priced at 28,999 and 32,999 yuan respectively.
The Sai 421S is powered by a four-cylinder engine capable of reaching 14,500 RPM. The engine produces a maximum output of 77.5 horsepower (57 kW) and a peak torque of 39 Nm at 13,000 RPM. It features high-specification hardware including electroplated ceramic cylinders and alloy steel camshafts.
The motorcycle boasts distinctive design elements such as "devil's eye" daytime running lights, an X-split taillight, and aerodynamic fairings. The vehicle has a lightweight body weighing 177 kg, utilizing an iron-aluminum composite frame and an aluminum alloy dual-rocker arm.
Key features include a bidirectional quickshifter and electronic throttle. The suspension is equipped with Marzocchi multi-stage adjustable handlebars and adjustable front shock absorbers. The racing edition supports three-mode switching: standard, sport, and rain.
Additional technological features include a smart unlocking system with options for password, NFC, Bluetooth, APP, or mechanical key. It also incorporates electronic locks for the fuel tank and passenger seat.