Cambodia splits into two very different rides. Around Siem Reap and Angkor the roads are flat, short and busy, and there is a long-standing provincial restriction that means most foreign visitors see the temples by tuk-tuk, bicycle or electric scooter rather than on a rented motorbike. The riding country is the northeast — Mondulkiri and Ratanakiri, red-dirt plateau, waterfalls and forest, several hundred kilometres from Phnom Penh and thinly populated enough that fuel planning matters. The dry season runs November to April, licensing turns on a 125cc threshold that catches a lot of riders out, and the road safety numbers are the real reason to take all of it seriously. Verified August 2026.
Route at a glance
| Two regions | Angkor and Siem Reap in the northwest; Mondulkiri and Ratanakiri in the northeast highlands |
| Distances | Phnom Penh to Senmonorom in Mondulkiri is about 390 km (240 miles); Mondulkiri to Ratanakiri is a full day on mixed surfaces |
| Terrain | Mondulkiri runs from 190 to 1,000 m (620 to 3,280 ft); Ratanakiri is a hilly plateau between the Tonlé San and Tonlé Srepok rivers |
| Siem Reap | Motorbike and scooter rental to foreign visitors has been restricted in Siem Reap province since 2002; electric scooters, bicycles and tuk-tuks are the normal way around the temples |
| Licences | Under 125cc needs no Cambodian licence; 125cc and above is Category A and does. Foreign licence and IDP recognition above that threshold is inconsistent |
| Season | Dry November to April, driest January to February; southwest monsoon May to October, heaviest September to October |
| Traffic | Drives on the right. Motorcyclists made up roughly three-quarters to four-fifths of Cambodian road deaths in recent reporting |
Open the northeast loop in Google Maps — Phnom Penh, Kratie, Senmonorom, Banlung and Stung Treng, the standard circuit through the two highland provinces, ready to send to your navigation.
Angkor, and the rule that catches people out
Angkor was the capital of the Khmer Empire from AD 802 until the late 14th century, and satellite survey work published in 2007 concluded it was the largest pre-industrial city in the world by area, with infrastructure spreading across at least 1,000 km² (390 sq miles). The temple roads themselves — the small circuit and the grand circuit north of Siem Reap city — are flat, sealed and genuinely pleasant to move around on two wheels.
The complication is that Siem Reap province has restricted motorbike and scooter rental to foreign visitors since 2002, a rule the provincial governor publicly reminded operators to observe as recently as 2017. It is not a national rule; it applies here and not elsewhere in Cambodia, and enforcement over the years has been uneven, with some businesses openly ignoring it. Electric scooters are the accepted workaround and are widely rented to visitors, along with bicycles and the ubiquitous tuk-tuk.
The practical read: do not build a trip around riding a petrol motorbike through the Angkor park, check the current position with a reputable local operator when you arrive, and treat any shop that offers you a rental without hesitation as evidence about that shop rather than about the law. Ride the temples electric, and keep the motorcycle for the rest of the country.
Mondulkiri, the highland province most riders go for
Mondulkiri is Cambodia's largest province by area at 14,288 km² (5,517 sq miles) and its most sparsely populated, which is the whole appeal. The capital, Senmonorom, sits in the southeast of the province roughly 390 km (240 miles) from Phnom Penh, and elevations across the province run from 190 to 1,000 m (620 to 3,280 ft) — enough to make evenings noticeably cooler than the lowlands and enough to give the roads some shape.
Three rivers cross the province, the Srepok, the Preaek Chhbaar and the Preaek Te, and the country between them is forested hill and open grazing. The set-piece is Bou Sra waterfall in Pich Chinda district, about 43 km (27 miles) from Senmonorom, a three-tiered fall of which only the first two tiers are publicly accessible. The road out to it is the standard Mondulkiri experience: sealed in parts, red laterite dirt in others, dust in the dry season and slick clay in the wet.
This is Bunong country. The Bunong appear to have lived here for around 2,000 years, were forcibly displaced during the 1970s — as many as half the people in the province died during the forced relocation of that period — and were only allowed back to their homeland in the 1980s. Elephant tourism in the province has shifted substantially toward sanctuary projects, and it is worth choosing carefully.
Ratanakiri, further out and rougher
Ratanakiri sits north of Mondulkiri, bordering Attapeu in Laos and Gia Lai and Kon Tum in Vietnam. The province runs from the Annamite Range in the north across a hilly plateau between the Tonlé San and Tonlé Srepok rivers down to deciduous forest in the south. Its 184,000 residents make up just over 1% of Cambodia's population, most of them in villages of 20 to 60 families, and the province is candid in official descriptions about having poor infrastructure.
That is what you are riding. Banlung is the base; the roads out to the crater lake, the waterfalls and the border country are a mix of improving sealed highway and dirt that becomes impassable rather than merely difficult after heavy rain. Logging and mining have changed the landscape considerably in recent decades, so the forest is patchier than older accounts suggest.
Fuel is the planning constraint in both provinces. Outside Senmonorom and Banlung you are buying petrol from roadside stalls in glass bottles, which is normal, works, and is worth filling from earlier rather than later. Carry cash; card acceptance thins out fast once you leave the tourist towns.
Licences, rentals and insurance, which is where it gets specific
The 125cc line. Cambodia's Road Traffic Law draws a clear threshold. Under Article 8, riders of motorcycles below 125cc are not required to hold a driving licence, though they must be at least 15 and carry identity documents. Under Article 40, motorcycles of 125cc and above are Category A and require a valid licence. That is why the rental fleet in most towns tops out at 125cc, and why stepping up to a 250cc dirt bike for the northeast changes your legal position entirely.
Foreign licences and IDPs. This is genuinely unsettled, and anyone telling you otherwise is simplifying. Article 45 requires foreigners lawfully residing in Cambodia to obtain a Cambodian licence or exchange their national one through the Ministry of Public Works and Transport, unless a bilateral or multilateral recognition applies. There is no published country-by-country list. Australian government guidance states plainly that international licences are not accepted and a Cambodian licence is required; UK guidance has suggested a 1949 international driving permit alongside a home licence may satisfy requirements for machines of 125cc and above. Both cannot be right in every case, and enforcement varies by province and by officer.
Insurance is the part that actually bites. Cambodian insurers commonly exclude driving without a valid licence, and some policies specifically require a valid Cambodian licence. Many hire companies carry no insurance at all on the machine. So a rider can be entirely lawful under the traffic law on a 110cc scooter and still find that their travel policy declines a claim because their home licence has no motorcycle entitlement, and that the rental shop has nothing behind it either. Read your own policy wording before you leave, not after.
Why this matters more here. Reported figures for 2024 record 2,844 road crashes with 1,509 deaths and 3,720 injuries, and motorcyclists have accounted for something between three-quarters and four-fifths of road deaths in recent reporting, with a national fatality rate around 18.8 per 100,000. Cambodia drives on the right, priority in practice belongs to the larger vehicle, and unlit motorbikes at night are common.
Season
Cambodia has two seasons and they are unambiguous. The southwest monsoon brings moisture from the Gulf of Thailand and the Indian Ocean from May to October, with the heaviest rain in September and October. The northeast monsoon ushers in the dry season from November to April, driest in January and February. Temperatures range from about 21 to 35 °C (70 to 95 °F), reaching around 40 °C (104 °F) in April.
For the northeast provinces that translates to a narrow good window. November to February is the sensible target: dry roads, workable dust, tolerable heat. March and April are dry but punishing, and April in particular is heat that changes how far you can ride in a day. May to October is when the laterite roads out to the waterfalls and border villages become a genuine problem, and flooding somewhere in the country is close to annual.
Gear notes for provinces with thin coverage
Mondulkiri and Ratanakiri are exactly the conditions that expose a phone-dependent setup. Coverage is patchy off the main highways, the interesting turnings are unmarked dirt, and the daylight is short enough near the solstice that being lost at 17:30 becomes being lost in the dark quickly — our guide to offline motorcycle navigation covers downloading regions and tracks properly before you leave Phnom Penh, and a JADO S6 riding system keeps the route visible without handling a phone in dust or rain.
Tyres take a beating on laterite, and a rental you did not choose will be running whatever pressure it had last month. A slow puncture 40 km beyond Senmonorom is a long, hot walk — how ambient temperature moves tyre pressure explains what to expect across a 20-degree day, and a TPMS sensor gives you the warning while you are still near somewhere. Guesthouses in both provinces often run limited generator hours, so a bi-directional fast charger that pulls power from the bike during the day is practical rather than decorative.
FAQ
Can foreigners rent a motorbike in Siem Reap?
Siem Reap province has restricted motorbike and scooter rental to foreign visitors since 2002, and the provincial governor reminded operators to observe it in 2017. Electric scooters, bicycles and tuk-tuks are the accepted alternatives around Angkor. Enforcement has been uneven, so check locally rather than assuming either way.
Do I need a licence to ride a motorbike in Cambodia?
Below 125cc, Cambodian law does not require a driving licence, only that you are at least 15 and carrying identity documents. From 125cc upward you need a Category A licence, and whether a foreign licence or IDP satisfies that is genuinely inconsistent between sources and enforcement practice.
When is the best time to ride in Cambodia?
November to February. It is dry, and the heat is manageable. March and April are dry but reach around 40 °C, and the May to October monsoon turns the dirt roads of the northeast provinces into the limiting factor.
How long does the northeast loop take?
Allow five to seven days from Phnom Penh for Kratie, Mondulkiri, Ratanakiri and Stung Treng at a pace that leaves time off the bike. Senmonorom alone is about 390 km from Phnom Penh, and that is not a fast 390 km.
Is a scooter enough for Mondulkiri and Ratanakiri?
On the sealed roads and in the dry season, yes. For the dirt spurs out to waterfalls and villages, a small dirt bike is a much better tool — but note that stepping over 125cc moves you into licence territory, so make that decision with your documents in mind.
