Bigger bikes and dirt roads

Short version: You don't need any of this. Every classic route on this site is sealed road, and a 110 to 150cc bike is the right tool for it. This page is for riders with real experience who want a trail bike, a bigger engine or some dirt. In brief: the bikes exist, mostly in Hanoi; anything over 125cc needs a full motorcycle licence; lighter beats bigger almost everywhere; and the unsealed riding is remote enough that we'd go with a guide.

First, who this is for

Most of our readers are first-timers, and for them the answer is in Rent or buy?: a small Honda with gears. If you already ride a manual bike well at home and want more, read on.

What you can rent

Approximate daily rates from operators' published 2026 prices, at about 26,000 VND to the US dollar.

A "dual-sport" is a road-legal trail bike: light, tall, with long suspension. From the listings we found, most of this fleet is in Hanoi, with smaller numbers in Saigon and around Da Nang and Hoi An. One long-established Hanoi shop lists nothing larger than the 286cc CRF300L and says plainly that it does not rent big bikes. Guided tours on a 700cc adventure bike are advertised at about 4.2 to 7.3 million VND (US$160–280) a day, all in.

Expect a bigger deposit than for a small bike, and a firm conversation about what you owe if you drop it. As ever, leave cash or a card hold, not your passport.

What the law says

• Class A covers everything over 125cc (or electric over 11 kW). Class A1 stops at 125cc. This has been the line since 1 January 2025; guides written earlier put it at 175cc and are out of date.
• So a 150cc trail bike needs the same licence as a 1200. For a visitor that means a home licence with a full motorcycle category, carried with a 1968-convention International Driving Permit. A light-bike category is not enough. The detail is in Licences, IDPs & staying legal.
• The fine is bigger too: 6 to 8 million VND (US$230–310) for riding anything over 125cc without a valid licence, and your insurer will take the same view.
• Speed limits ignore engine size. Motorbikes are limited to 60 km/h outside towns on ordinary two-way roads, 70 on dual carriageways, and 50 or 60 in towns. Expressways are closed to every motorbike, however large.

Why bigger is not better here

• You can't use the power. With a 60 km/h limit, frequent villages and passes ridden at 30 or 40, a 300 is already more than enough.
• Weight is the enemy. Wet concrete, clay, a plank bridge, a bamboo raft: a light bike shrugs these off, and one person can pick it up. One rider who toured the far north on a 300cc trail bike wrote afterwards that the big adventure bike he owns at home would have been too much.
• Help is small-bike shaped. Every village mechanic knows a little Honda. Tyres and parts for big bikes are much harder to find outside the cities.
• It costs more to rent, and far more to drop.

A big bike makes most sense on a guided tour, where someone else carries the luggage and the spare parts.

What "off-road" means in Vietnam

It rarely means open country. It means the back lanes, which come in a few flavours:

• concrete village tracks one slab wide, often steep;
• old stretches of road left behind when a highway was rebuilt;
• dirt and gravel farm, forest and plantation roads;
• ordinary roads chewed up by landslides and roadworks;
• stream crossings, and in places a bamboo raft or a small ferry.

Most of it is in the far north: the back roads of Ha Giang and Hoang Su Phi, the border valleys of Cao Bang, the hills around Sa Pa and Mu Cang Chai, the Ta Xua ridge and Pu Luong. Tours also run on tracks off the Ho Chi Minh Road in the centre, and on farm tracks between Saigon and Da Lat.

The extra risks, and why we'd take a guide

• Remoteness. The UK government notes that people have died or been injured doing adventure activities in Vietnam's rural and mountain areas, and that some places are hard for rescue services to reach. Good hospitals are in the big cities.
• Unexploded weapons. The same advice warns that landmines and unexploded bombs remain in former battlefields, often unmarked. Stay on tracks that are clearly in use.
• Permits and closed areas. Foreigners need a permit in the border belt, which is exactly where many of the best tracks are, and military areas are not always signposted. See the Ha Giang and Cao Bang pages.
• Insurance. Ask your insurer, in writing, whether you are covered for that engine size and for unsealed roads.

A local guide knows which track washed out last week, whose land it crosses and which police post wants to see what. The UK advice is to take a reputable one. Costs and questions to ask are in Guided tour, easy rider or on your own?.

Protective gear

On top of the gear and packing list:

• a full-face or motocross helmet, with goggles or a visor against dust;
• proper riding boots that protect the ankle and shin (hiking boots are for tarmac);
• knee and elbow guards, and a back protector or armoured jacket;
• sturdy gloves, and water you can reach without stopping.

Tours usually supply a helmet, jacket, trousers and gloves, and one Hanoi shop rents a set for about 130,000 VND (US$5) a day. Some supplied helmets are open-face, and boots were on none of the kit lists we saw, so bring your own of both.

Dust or mud: the seasons

Dust is the easier problem. When it rains, the red clay of the hills turns slick as soap, and ruts hide under standing water. In the north, October, November, March and April are the kind months. More in When to go.

What we'd do

On a first trip, a 150cc trail bike at most, and the sealed roads, which are spectacular enough. If the dirt still calls, book two or three guided days in the north in autumn or spring, on the operator's bike. Vetted rental shops and guides are in the directory.