Bhutan Sets No Winter Tyre Rule for 2026-27, 1.6mm Tread

Bhutan drives on the left and keeps its tyre code simple: no seasonal switch, no dedicated studded-tyre allowance beyond a general restriction, just a 1.6mm tread floor that applies at every checkpoint. Rental fleets are expected to meet that figure before handover, though the mountainous terrain rewards checking well above it. Nothing here changes with the season.

For drivers visiting Bhutan or locals maintaining their vehicles, knowing the local rules costs nothing and saves both the fine and the argument.

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Tyre Law Summary for Bhutan

Winter Tyre Rules in Bhutan

There is no winter tyre mandate in Bhutan. The main tyre concern here is heat and UV degradation rather than cold. High road temperatures accelerate tyre wear, so check condition and pressure regularly, especially before long drives.

Minimum Tread Depth in Bhutan

In Bhutan, the legal minimum tyre tread depth is 1.6 mm, measured across the central three-quarters of the tread width around the full circumference.

For Bhutan’s roads, the practical replacement threshold is 3.0 mm — well above the legal minimum. The difference in wet braking at 80 km/h:

Heat accelerates tyre degradation in Bhutan. UV exposure and high pavement temperatures cause rubber compounds to harden faster, so a tyre that looks fine may already have reduced grip. Check tyre manufacture date — replace tyres older than 5 years regardless of tread remaining.

Studded Tyres in Bhutan

Studded tyres are restricted in Bhutan. Restrictions typically cover the period when studs may be used, the number and size of studs, and sometimes specific road types where they are banned. Verify the current rules for your route.

All-Season Tyres in Bhutan

All-season tyres are a legal option in Bhutan provided they carry the M+S marking. They are a popular choice for drivers who want year-round convenience without maintaining two sets of tyres.

Penalties for Tyre Violations in Bhutan

Non-compliant tyres in Bhutan can result in fines during police checks. The financial risk extends beyond the fine itself — if you are involved in a collision with illegal tyres, you may be found at fault regardless of other circumstances.

Tyre Considerations for Bhutan’s Climate

Bhutan experiences hot climate with monsoon seasons. This affects tyre choice in specific ways:

• Heat and UV: prolonged high temperatures harden rubber compounds over time, reducing grip even when tread depth looks adequate. Replace tyres at 5 years regardless of tread
• Sand and dust: in arid regions, fine particles reduce traction. Lower your speed on dusty roads
• Sudden rain: after long dry spells, the first rain mixes with road oil to create extremely slippery surfaces. Fresh, deep-treaded tyres handle this far better than worn ones
• Temperature swings: desert regions can see 30°C+ swings between day and night, affecting tyre pressure

Road Conditions and Tyre Wear in Bhutan

Road quality in Bhutan varies significantly between the main routes and the back roads. Highways connecting Thimphu to other major cities are generally surfaced, but secondary and rural roads may be unpaved or damaged.

Practical tips for driving in Bhutan:

• Carry a full-size spare (not a space-saver) if driving outside major cities
• Check tyre sidewalls for cuts and bulges after driving on rough roads
• Reduce speed on unpaved sections — stones and debris cause punctures

Bhutan drives on the left. If your vehicle was originally configured for right-hand traffic, weight distribution is slightly different, which can cause uneven wear patterns over time.

How Bhutan’s Tyre Laws Compare to Neighbours

If you are driving across borders from Bhutan, tyre regulations may change at each crossing:

• Pakistan: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.
• India: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.
• Bangladesh: Winter tyres not required. Tread: 1.6 mm. Studded: not applicable.
• Afghanistan: Winter tyres not required. Tread: 1.6 mm. Studded: restricted.

For speed limits, traffic rules, and licence requirements in Bhutan, see our Driving in Bhutan guide.

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