The Honda CT125 is Vietnam’s most touring-capable underbone straight from the factory: a 123.9 cc air-cooled single with an adventure posture, a big tank and the highest ground clearance in Honda’s range. Honda Vietnam’s page (retrieved 2026-09-23, recorded in our model database) lists 6.76 kW at 6,250 rpm, a very tractable 10.9 Nm at 4,750 rpm, a 5.4-litre tank, 1.61 L/100 km claimed economy, an 800 mm seat, 117 kg kerb weight, 90/80-17 front and 80/90-17 rear tyres, and 165 mm ground clearance.

Why it tours well

  • Range: the 5.4-litre tank with the claimed economy gives a theoretical range around 300-plus km, with real-world range varying with load, speed and terrain. For northern Vietnam, where fuel stations thin out on the mountain roads, that tank is the CT125’s core touring feature.
  • Torque where it matters: peak torque arrives at low revs, so mountain climbs and rough tracks are taken at walking-pace revs without distressing the engine. It is not fast — accept 40 to 55 km/h cruising as its natural rhythm.
  • Clearance and wheels: 165 mm of clearance takes rutted village tracks and construction detours that stop a Wave-class bike. The 17-inch wheels roll over broken surfaces better than small scooter wheels.
  • Posture: the 800 mm seat and upright bars give a commanding, comfortable position for hours at a time — taller riders in particular find it the first underbone that fits.

Setup for a trip

  • Luggage: Honda styles the CT125 with racks front and rear; the practical touring kit is a roll bag strapped to the rear rack under a cargo net, valuables on your body, and a small dry bag for electronics. Keep the load low and moderate — the luggage guide covers tie-down patterns.
  • Tyres: the stock dual-purpose tyres are credible on gravel; check pressures before a long day, not just at the rental counter.
  • Pre-ride checks: chain, oil level, brake feel, lights. The high-mileage inspection checklist applies before any long route.
  • Weather kit: the tall stance offers no wind protection; a proper visor and layers matter in the northern winter and on mountain passes.

Honest limits

It remains a 12-horsepower underbone: sustained highway pace is not its habitat, and its four-speed rotary gearbox with centrifugal clutch means downhill sections still need early gear choice and disciplined brakes. Its rival for the same role, Yamaha’s PG-1, is compared in our PG-1 versus CT125 guide.

As a day-trip tool from Hanoi — Ba Vi, Duong Lam, the Red River dike roads — the CT125 is close to ideal. If you would like an adventure-styled underbone for a route, contact us to confirm current availability.