The PG-1 is Yamaha Vietnam’s adventure-styled underbone: semi-automatic gears, chunky 16-inch tyres, tall ground clearance, and a design that invites both city commuting and light trail exploring. All specifications below are from the official Yamaha Motor Vietnam PG-1 2026 standard-version page (retrieved 24 September 2026).

Engine and transmission

The 113.7 cc single-cylinder four-stroke engine is air-cooled, SOHC, two-valve, with electronic fuel injection. Output is 6.6 kW at 7,000 rpm and 9.5 Nm at 5,500 rpm — familiar underbone territory, tuned for flexibility rather than speed. The clutch is a wet multi-plate automatic centrifugal unit feeding a four-speed gearbox: there is no clutch lever, shifting is by foot only, and the engine cannot stall from a clumsy launch. Ignition is digital TCI.

The adventure part: chassis and clearance

This is where the PG-1 earns its name. Ground clearance is 190 mm — far beyond a normal underbone — and the seat sits at 795 mm. The bike is 1,980 x 805 x 1,050 mm on a 1,280 mm wheelbase, weighing 107 kg as listed on the manufacturer page. Front suspension is a telescopic fork with 130 mm of travel; the rear is a swingarm linkage unit with a damper under the seat. Wheels are 16-inch front and rear with block-pattern 90/100-16 tubed tyres — the tread and size are the visual signature of the model.

Brakes and practicalities

The front brake is a single hydraulic disc; the rear is a drum. The 5.1-litre tank is large for the class, with a seat-hinged filler for quick refuelling. Yamaha’s specification table lists consumption at 1.76 L/100 km (the page’s highlight text cites 1.69 L/100 km — real-world figures always vary with speed, load and terrain). Oil capacity is listed at 0.8 L, the battery is a 12V 3Ah unit, and the warranty published on the page is 3 years or 30,000 km, whichever comes first. The instrument cluster is an analogue speedometer with a gear-position display.

Who it suits

Riders who want one bike for city streets, broken rural roads and rainy-season flooding will like the PG-1’s formula: underbone simplicity with genuine clearance and grip. It is not a sports machine and not a touring bike. For a full head-to-head with Honda’s trail-cub take on the same idea, PG-1 versus CT125 comparison. Rental availability of any specific model: contact us to confirm current availability.