Sichuan-Tibet Highway Cycling: G318 Complete Guide for 2026

The Sichuan-Tibet Highway cycling route on G318 (川藏南线) is the most legendary long-distance ride in China. It stretches 2,142 km (1,331 mi) from Chengdu (成都) to Lhasa (拉萨) across 14 mountain passes above 4,000 m (13,120 ft), finishing at the foot of the Potala Palace. Most cyclists complete it in 20–25 days, including 2–3 acclimatization days. Daily distances run 80–120 km (50–75 mi) on flatter sections and 50–70 km (31–43 mi) on climb days. The highest active pass is Dongdashan (东达山, 5,130 m / 16,830 ft) between Zuogong and Bangda — higher than any other paved cycling pass in China.

This guide is built for foreign cyclists planning the route in 2026. Yaso Trip, your professional local travel agency, has run the Chengdu-to-Lhasa tour every season for years. What follows is a stage-by-stage breakdown with permits, costs, gear, an acclimatization protocol, and the operational details that decide whether your ride finishes in Lhasa or continues south to Yunnan.

Why Cycle the Sichuan-Tibet Highway?

The G318 Sichuan-Tibet Highway is more than a route — it is a Tibetan Buddhist pilgrimage corridor, a 30°N latitude transect through six river systems, and the most varied multi-week cycling environment in Asia. Cyclists who finish it often describe it as the ride that recalibrated their definition of "hard."

G318 Sichuan-Tibet Highway - Yaso Trip

Climbing toward Mila Pass on G318 - Yaso Trip

• Iconic legendary status — The G318 is China's longest national highway at 5,476 km from Shanghai to the Nepal border, and the Chengdu–Lhasa segment is widely regarded as the most beautiful scenic road in the country.
• Vertical climate zones in days — In a single trip you ride from the subtropical Sichuan basin at 500 m (1,640 ft) to the alpine Tibetan plateau above 5,000 m (16,400 ft), passing through bamboo forest, coniferous mountains, high-altitude grasslands, and the dry rain shadow of the Yarlung Zangbo (雅鲁藏布江) valley.
• 14 mountain passes above 4,000 m — The route's defining challenge. Three of the 14 are now bypassed by modern tunnels (Gao'ersi 2014, Jianziwan 2016, Mila 2019), but eleven remain active climbs, with Dongdashan at 5,130 m the highest paved cycling pass on the route.
• Six major river crossings — The route crosses the Dadu (大渡河), Yalong (雅砻江), Jinsha (金沙江, headwaters of the Yangtze), Lancang (澜沧江, the Mekong), Nujiang (怒江, the Salween), and Yarlung Zangbo (雅鲁藏布江, the Brahmaputra) — three of Asia's great rivers in one ride.
• Tibetan cultural immersion at riding pace — The route passes through Khampa Tibetan towns of Litang and Batang, the Mangkang monastery district, and the Lulang (鲁朗) forest valley before the final descent into Lhasa.
• A finish line that earns its mythology — Riding into Lhasa's Barkhor Square after three weeks on the road, with the Potala Palace rising behind the prostrating pilgrims, is unlike any other cycling finish in the world.

All 5 Stages at a Glance

The G318 Sichuan-Tibet Highway divides naturally into five stages, each marking a distinct geographic and cultural transition. Use the table below to plan training, gear, and acclimatization before the stage-by-stage detail.

Plan your G318 Sichuan-Tibet Highway cycling tour:

25 Days Sichuan-Tibet Highway Cycling Tour from Chengdu to Lhasa

Tour Route：Chengdu-Ya'an-Kangding-Litang Monastery in Litang County, Garze-Chamdo-Nyingchi-Lhasa

Tour Type：Cycling Tours

25 Days

9 Places

View Detail

The 5 Stages of G318 — Stage-by-Stage Guide

Stage 1. Chengdu to Kangding (成都→康定) — Sichuan Basin to the Plateau Threshold

G318 Chengdu - Kangding Cycling Map

The first stage carries cyclists from the humid Sichuan basin at 500 m (1,640 ft) up to the Tibetan-Sichuan plateau threshold at Kangding (康定, 2,560 m / 8,400 ft). It is the gentlest stage by elevation, but experienced tour leaders find it is also where most cyclists discover what their body actually does on day-after-day loaded riding — and where pacing mistakes set up problems on Stage 2.

Fact Panel

• Route: Chengdu (成都) → Ya'an (雅安) → Xingou Village (新沟村) → Luding (泸定) → Kangding (康定)
• Length: 365 km (227 mi)
• Elevation: 500 m (1,640 ft) at Chengdu to 2,560 m (8,400 ft) at Kangding
• Duration: 5 days
• Best Time: May, late August to early October
• Difficulty: Moderate (low-altitude, but daily distances are long)
• Highlights: Erlangshan Tunnel (二郎山隧道), Hailuogou (海螺沟) glacier valley, Luding Bridge (泸定桥) historic Long March site, the climb up the Dadu (大渡河) canyon
• Accommodation & Supplies: Foreigner-friendly hotels in Ya'an, Luding, and Kangding; small guesthouses in Xingou Village; bike shops and resupply available end-of-day

The stage opens with a flat 155 km (96 mi) warm-up to Ya'an, then climbs steadily into the Hengduan Mountains (横断山脉). The Erlangshan Tunnel (二郎山隧道, opened 1999, 4,176 m / 2.6 mi long) replaces what used to be the route's first major pass climb, removing roughly 1,500 m (4,920 ft) of elevation gain and a notorious switchback descent. Most modern itineraries take the tunnel, preserving cyclists' legs for the eleven climbs that remain.

Chengdu Panda Base

Hailuogou National Park

Stage 2. Kangding to Litang (康定→理塘) — Three High Passes in Five Days

G318 Kangding- Litang Cycling Map

Stage 2 is where G318 cycling becomes high-altitude cycling. In five days the route climbs from Kangding at 2,560 m (8,400 ft) across Zheduo Pass (折多山, 4,298 m / 14,100 ft), Jianziwan Tunnel (剪子弯山隧道, 4,000 m / 13,120 ft), and Kazila Pass (卡子拉山, 4,718 m / 15,480 ft) before descending into the Tibetan town of Litang (理塘, 4,014 m / 13,170 ft) — at the time of arrival, the highest town most cyclists have ever stayed in.

Fact Panel

• Route: Kangding → Xinduqiao (新都桥) → Yajiang (雅江) → Xiangkezong Village (香克宗村) → 158 Daoban (158道班) → Litang (理塘)
• Length: 290 km (180 mi)
• Elevation: 2,560 m (8,400 ft) to 4,718 m (15,480 ft); Litang at 4,014 m (13,170 ft)
• Duration: 4–5 days
• Best Time: May, September to early October
• Difficulty: High (first sustained 4,000 m+ riding, fast altitude gain)
• Highlights: Zheduo Pass — the official threshold of the Tibetan world; Xinduqiao "photographer's paradise" valley; the 18 km/1,200 m climb from Yajiang to Xiangkezong Village
• Accommodation & Supplies: Mid-range hotels in Xinduqiao and Yajiang; basic Tibetan guesthouses in Xiangkezong and at 158 Daoban (a former highway maintenance station now functioning as a remote cyclist stop); foreigner-registered hotels in Litang

Based on our past experience, cyclists consistently flag the Yajiang to Xiangkezong climb — approximately 18 km (11 mi) of continuous gain at roughly 1,200 m (3,940 ft) of vertical — as the single hardest sub-section of Stage 2. It comes immediately after a long descent from Kazila ridge and catches cyclists with cold legs. The standard pacing overnights at Xiangkezong rather than pushing to 158 Daoban in a single day, which is what most Chinese cyclist forums recommend but routinely produces altitude reactions in foreign riders who haven't pre-acclimatized.

A second operational note: Zheduo Pass officially sits at 4,298 m (14,100 ft), but the climb effectively starts back at Luding (1,400 m / 4,600 ft) on Stage 1. Cyclists who treat Stage 1 as a warm-up arrive at the base of Zheduo with substantial fatigue. The standard tour itinerary builds in an extra rest morning in Kangding precisely for this reason.

Zheduo Mountain Pass

Xinduqiao, Kangding

Stage 3. Litang to Mangkang (理塘→芒康) — Crossing into Tibet

G318 Litang - Mangkang Cycling Map

Stage 3 is the most remote section of the entire route. The road descends from Litang's 4,014 m (13,170 ft) grasslands, drops into the Jinsha River (金沙江) gorge — the headwaters of the Yangtze — crosses the river bridge into the Tibet Autonomous Region (西藏自治区) at Markam (芒康, also Mangkang), and climbs back up to 3,875 m (12,710 ft). There are fewer towns, less mobile signal, and longer distances between resupply points than any other stage.

Fact Panel

• Route: Litang → Batang (巴塘) → Jinsha River bridge → Mangkang (芒康)
• Length: 320 km (199 mi)
• Elevation: 2,580 m (8,460 ft) at the Jinsha River to 4,685 m (15,370 ft) at Haizishan; Mangkang at 3,875 m (12,710 ft)
• Duration: 4 days
• Best Time: May, September (avoid June–July rockfall risk)
• Difficulty: High (remote, long descents, the Tibet border crossing)
• Highlights: Haizishan (海子山) "Sister Lakes" glacial twin lakes, the Jinsha River bridge as the official Sichuan–Tibet boundary, Tibetan Khampa villages in Markam county
• Accommodation & Supplies: Mid-range hotels in Batang; foreigner-registered hotels in Mangkang; small guesthouses in Dengba Village (登巴村) for cyclists splitting Mangkang–Zuogong over two days

The Haizishan "Sister Lakes" (姊妹湖) — twin glacial lakes mirrored on either side of the road at 4,685 m (15,370 ft) — are the visual signature of this stage and one of the most photographed locations on the route. They sit on the boundary between Litang and Batang counties, and reaching them in clear morning light is the standard scheduling choice for experienced operators.

Haizishan Nature Reserve

Jinsha River Bridge

Stage 4. Mangkang to Bomi (芒康→波密) — The Highest Pass and the 72 Turns

G318 Mangkang - Bomi Cycling Map

Stage 4 is the most physically demanding stage and the route's mythological climax. In six days, cyclists cross Dongdashan (东达山, 5,130 m / 16,830 ft) — the highest paved cycling pass on the entire G318 — descend the legendary Nujiang 72 Turns (怒江72拐) below Yela Pass (业拉山, 4,658 m / 15,280 ft), and finish at the gentler 2,725 m (8,940 ft) altitude of Bomi (波密) in the Yarlung Zangbo valley. It contains more time above 4,000 m than any other stage on the route.

Fact Panel

• Route: Mangkang → Dengba Village (登巴村) → Zuogong (左贡) → Bangda (邦达) → Basu (八宿) → Ranwu (然乌镇) → Bomi (波密)
• Length: 580 km (360 mi)
• Elevation: 2,725 m (8,940 ft) at Bomi to 5,130 m (16,830 ft) at Dongdashan; route average above 4,000 m for 4 of the 6 days
• Duration: 6 days
• Best Time: May, September (Anjula Pass is consistently a headwind regardless of season, per multi-season tour leader observations)
• Difficulty: Very High (route's hardest stage; expert-level high-altitude experience required)
• Highlights: Dongdashan summit at 5,130 m (16,830 ft) — the highest paved cycling pass in China, Yela Pass and the Nujiang 72 Turns descent, Ranwu Lake (然乌湖) glacial lake at the base of Anjula, Tibetan Bon and Buddhist monasteries in Bangda
• Accommodation & Supplies: Foreigner-friendly hotels in Zuogong, Bangda, Basu, and Bomi; basic guesthouse in Dengba Village; oxygen cylinders and altitude medication available at Bangda (highest service town)

The Nujiang 72 Turns (怒江72拐) is the most-photographed switchback descent on G318 — 72 hairpin turns dropping roughly 800 m (2,625 ft) into the Nujiang (怒江) canyon over 12 km (7.5 mi) of road. The descent itself is fast and technical; the climb back out the next day is a separate challenge. Experienced operators schedule the 72 Turns descent for the morning, with the support vehicle pre-positioned at the bottom.

Anjula Pass (安久拉山, 4,475 m / 14,680 ft) sits between Basu and Ranwu and is the stage's "quiet killer." Across multiple seasons, Yaso Trip tour leaders observe that Anjula consistently delivers a headwind regardless of weather conditions, and the climb is gentle enough that cyclists underestimate it. Most Chinese cyclists flag Zheduo and Anjula together as the two passes most likely to deliver rain or snow on G318.

Nujiang 72 Turns

Bonpo Tibetan Buddhist Monasteries

Stage 5. Bomi to Lhasa (波密→拉萨) — Lulang Forest, Sejila Pass, Potala Finale

G318 Bowo - Lhasa Cycling Map

The final stage is the most varied and the most rewarding. From Bomi at 2,725 m (8,940 ft), the road climbs through the Lulang (鲁朗) coniferous forest valley — one of the most beautiful sections of G318 — over Sejila Pass (色季拉山, 4,728 m / 15,510 ft) with its viewpoint of Mt. Namjagbarwa (南迦巴瓦, 7,782 m / 25,531 ft), descends into Nyingchi (林芝, also Bayi 八一镇), and follows the Yarlung Zangbo and then the Lhasa Rivers across the Mila Pass tunnel into the Lhasa valley. Cyclists arrive at the Potala Palace (布达拉宫) on Day 24.

Fact Panel

• Route: Bomi → Tongmai (通麦) → Lulang (鲁朗) → Bayi/Nyingchi (八一镇) → Gongbo'gyamda (工布江达) → Songduo (松多) → Lhasa (拉萨)
• Length: 580 km (360 mi)
• Elevation: 2,725 m (8,940 ft) at Bomi to 5,013 m (16,447 ft) at the old Mila Pass route, or 4,750 m (15,580 ft) via the Mila Pass Tunnel; Lhasa at 3,650 m (11,975 ft)
• Duration: 5 days
• Best Time: May to early October (Lulang valley is most beautiful in autumn)
• Difficulty: High (Sejila climb is the day's hardest, but Stage 5 is generally easier than Stage 4)
• Highlights: Tongmai bridge crossing (formerly a notorious landslide section, now a modern tunnel), Lulang forest viewpoint, Sejila Pass and Mt. Namjagbarwa view, the Mila Pass Tunnel (米拉山隧道, opened 2019), Lhasa Barkhor Square arrival
• Accommodation & Supplies: Foreigner-friendly hotels throughout this stage; Nyingchi (Bayi) is a full-service town with airport, bike shops, and English-speaking medical clinics; Lhasa offers everything

The Mila Pass tunnel (米拉山隧道, opened April 2019, summit approximately 4,750 m / 15,580 ft) replaces the old Mila Pass road climb to 5,013 m (16,447 ft). Most modern itineraries use the tunnel, which is faster, safer in bad weather, and removes about 260 m (855 ft) of vertical gain. Cyclists wanting the classic 5,013 m summit experience can arrange the old-route detour with support vehicle pre-positioning, but it adds half a day.

Yangpachen in Lhasa

The Potala Palace in Lhasa, Tibet

Southbound Tibet-Yunnan Highway cycling tour:

24 Days Tibet-Yunnan Highway Cycling Tour from Lhasa to Lijiang

Tour Route：Lhasa-Nyingchi-Chamdo-Feilaisi in Meili Snow Mountain, Diqing-Shangri-La-Lijiang

Tour Type：Cycling Tours

24 Days

View Detail

Practical Logistics

Tibet Travel Permits and Mandatory Tours for Foreigners

The Tibet Autonomous Region is the only province in China where foreign tourists cannot travel independently. As of 2026, foreign cyclists must:

• Apply for a Tibet Travel Permit (西藏旅行许可证) through a licensed Tibetan travel agency. The permit itself is technically free from the Tibet Tourism Bureau but agencies bundle the application fee into tour pricing.
• Obtain an Alien's Travel Permit (外国人旅行证) for any cycling outside the Lhasa metropolitan area — this covers the entire Bomi–Lhasa stretch on G318.
• Travel with an English-speaking Tibetan guide and a registered support vehicle from the Jinsha River bridge crossing onward.
• Apply 15–20 days in advance. Peak-season blackout windows occur around Tibetan New Year (Losar, typically February–March) and around July 1st China National Day.

The Sichuan section (Chengdu to the Jinsha River bridge at Markam) does not require Tibet permits and can technically be cycled independently. Most foreign cyclists who plan the full Chengdu-to-Lhasa route still book agency-handled support van logistics and accommodation pre-booking, since the operational complexity is significant even before the Tibet section begins.

Best Time to Cycle G318

Most guides cite May and September to early October as the prime windows. This matches both permit-cycle reality and the primary tour departure schedule.

Tour leaders have observed across multiple seasons that late May through early July often delivers more consistent weather conditions than competitor sources suggest, despite the conventional warning to avoid the June–July monsoon. The monsoon affects the Sichuan section (Stages 1–2) more than the Tibet section, where the rain shadow of the Hengduan Mountains keeps Stages 4–5 relatively dry. Cyclists prioritizing wildflowers and warmer evening temperatures often prefer this window.

September to early October offers the most stable Tibet-side weather and the best Lulang autumn color. Avoid October 1st National Day week — domestic tourism surges, accommodation prices double, and Lhasa permits run on backlog.

Winter (November to April) is closed for most foreign cyclists. Several passes are snow-blocked, and Tibet Tourism Bureau permit issuance pauses for routine winter periods.

What to Pack (Late May–July Riders)

Tour leaders recommend the following gear list for late May–July departures, when weather is most variable. September–October riders can drop one layer of insulation but otherwise the list is similar.

• Cycling shorts: 2 × padded cycling shorts with double-arrow chamois (worn without underwear), 2 × fleece-lined long cycling tights for cold descents
• Tops: 2 × short-sleeve quick-dry, 2 × long-sleeve quick-dry; cycling jersey optional but useful for the rear pockets
• Outer layer: Waterproof hardshell rain jacket (5,000–10,000 mm waterproof rating); lightweight down jacket (real down, not polyester filling) for evenings and high passes; a separate packable rain jacket-and-pants set in fluorescent yellow or orange even if you have a hardshell
• Footwear: Waterproof hiking shoes (low-cut, not high-top, to preserve ankle mobility on the bike); clipless pedals discouraged for first-time G318 riders
• Gloves: Full-finger cycling gloves plus a thicker pair for descents; waterproof outer mittens for sub-zero passes
• Helmet, glasses, buff, sun hat for off-bike use

The layering principle: change out of wet base layers BEFORE long descents, never during sudden temperature drops (just add layers on top), and always wear hardshell over down — never the reverse.

Bike, Wheels, and Drivetrain

The G318 surface is paved end-to-end as of 2024 reports, but rough patches, debris, and rockfall make it harder on equipment than the average paved tour.

• Best choice — gravel/adventure bike with 38–45 mm tires, tubeless setup, and a wide-range gravel groupset (Shimano GRX is the preferred drivetrain on G318 for its impact tolerance and altitude reliability)
• Acceptable — road bike with the widest tires the wheelset supports, multiple spare tubes, and patience on rougher sections
• Acceptable — mid-range aluminum mountain bike (e.g., Giant XTC level)
• Drivetrain: Shimano (XT, XTR, GRX) or SRAM only. Other brands lack the cold-weather and impact reliability needed at altitude
• Wheels: Aluminum, not carbon. Carbon wheels frequently fail on G318 due to the impact load from potholes and rockfall debris on long descents
• Tires: Avoid pure slicks. Tubeless with sealant strongly recommended. Carry at least three spare tubes regardless

Plan your G318 Sichuan-Tibet Highway cycling tour:

25 Days Sichuan-Tibet Highway Cycling Tour from Chengdu to Lhasa

Tour Route：Chengdu-Ya'an-Kangding-Litang Monastery in Litang County, Garze-Chamdo-Nyingchi-Lhasa

Tour Type：Cycling Tours

25 Days

9 Places

View Detail

Tips & Cautions

• Acclimatize before pushing. Build in a half-rest day in Kangding (2,560 m / 8,400 ft) and a half-rest day in Litang (4,014 m / 13,170 ft). Cyclists who treat them as bonus riding time consistently arrive at Stage 4 underprepared.
• Drink water — far more than you think. Dehydration is the single biggest cause of headaches on G318. Two to three liters minimum on riding days, more above 4,000 m. Carry electrolyte tablets — high-altitude exertion strips sodium and potassium fast.
• Eat carbs aggressively. Energy gels and rice-based meals work better at altitude than fat-heavy or protein-heavy foods, which take more oxygen to digest. A high-carb gel before every climb above 4,000 m and electrolyte powder in every water bottle on hot riding days are standard tour leader recommendations.
• Treat Anjula Pass (4,475 m / 14,680 ft) as a hidden hard pass. It looks gentle on the elevation profile but it consistently delivers a headwind. Don't burn matches early; save energy for the climb.
• Plan the Nujiang 72 Turns descent for morning. Afternoon thunderstorms are common in the Nujiang gorge, and wet hairpins are dramatically more dangerous than dry ones.
• Hop in the support van without ego. People die on G318 every year. If you cannot ride, ride in the van. Resume on the next stage.
• Set up Alipay and WeChat Pay before arrival. Both bind to most foreign cards as of 2024, but the setup process needs working internet and a Chinese phone number, which is harder to arrange in remote sections of the route. Carry CNY cash for sections where signal is weak (Stage 3 in particular).
• Use Baidu Maps or Amap (Gaode), not Google Maps. Google Maps is blocked and unreliable in China without a VPN. Baidu and AutoNavi are accurate down to the bike-lane level on most of G318.

Why Travel With Yaso Trip on G318

The G318 Sichuan-Tibet Highway is the route where independent cycling intentions meet regulatory and operational reality. The Tibet Autonomous Region permit system, the support vehicle requirement, the altitude protocol, and the 25-day logistics chain all benefit from a local agency that has run the route every year for nearly a decade.

• Permit expertise at the source. Yaso Trip is licensed to apply for both the Tibet Travel Permit and the Alien's Travel Permit, with the 15–20 day application window handled in-house and full familiarity with the 2026 documentation requirements that catch most independent foreign applicants by surprise.
• Operational scale on G318. Every season since 2018, the Chengdu-to-Lhasa tour has run with the same 25-day overnight rhythm — half-rest days in Kangding and Litang, splits at Xiangkezong, Dengba Village, and 158 Daoban — refined across operational seasons rather than copied from a generic itinerary.
• Support vehicle and altitude support. Every G318 tour includes a support vehicle stocked with medical-grade oxygen, basic altitude medication, mechanical spares, and capacity to evacuate any rider who needs to descend. The driver and English-speaking Tibetan guide stay with the group all 25 days.
• Foreigner-friendly accommodation pre-booking. Not all hotels on G318 reliably accept foreign passports. Tour-booked properties are exclusively those Public Security Bureau-approved for foreign guests, so registration is never a problem at check-in.

Your China Cycling Adventure Awaits

From Yangshuo's gentle karst landscapes to the legendary G318 Sichuan-Tibet Highway, China offers a cycling experience for every level — but logistics, permits, and language can make or break the trip. Whether you are planning your first beginner-friendly tour or your dream Tibet expedition, Yaso Trip handles every detail so you can focus on the road ahead.