Nepal has no official mountain bike trail grading or rating system, so we built one. Every route gets a colour grade: Green (easy), Blue (moderate), Red (hard), or Black (challenging), plus an altitude band, because thin Himalayan air changes how hard a trail really feels. A long, remote, or exposed route also carries a warning flag.
Every rider turns up with a different fitness level, a different skill set, and a different idea of fun, so a clear trail rating matters before you book a tour. The problem is that mountain bike trail grading varies widely around the world, and Nepal is its own case entirely. We have no purpose-built bike parks, and the national Cycling Association has not yet produced an official grading of the country's trails. This guide explains the rating system we use, how it compares to the official systems abroad, what every grade actually involves, and how to pick the right difficulty level for you.
Key takeaways
Nepal has no official MTB trail rating system, so operators use their own. Ours uses four colour grades plus an altitude band.
Green is easy, Blue is moderate, Red is hard, and Black is challenging. These colours match the systems used across the UK and Europe.
Altitude is the factor that no Western system includes, and that matters most here. The same trail is far harder at 4,000 m than near Pokhara.
Difficulty comes from gradient, surface, obstacles, exposure, distance, and altitude combined, not technical riding alone.
When unsure, pick one grade lower and step up once you have acclimatised. Our guides adjust the route on the day.
Why Nepal needs its own rating system
Even between countries that do have official systems, no two fully agree. North America uses the IMBA system of white, green, blue, black, and double black. Great Britain and much of Europe use green, blue, red, and black. Germany and the Alps add the Singletrail-Skala, a technical scale from S0 to S5. A blue in one country is not always a blue in another, which is exactly why you should read the local rating before you ride somewhere new.
Nepal sits outside all of this. Our rides are not short, signposted loops next to a car park. They are long, point-to-point journeys through real mountains, often far from any road, where the weather turns fast, and help is hours away. Two things that barely register at a European trail centre dominate here. The first is altitude: the thin air above 2,500 m makes any climb feel much harder than the same climb at sea level. The second is remoteness: exposure, river crossings, and long days with no bailout raise the real difficulty even when the riding itself is not especially technical. That is why we grade the whole ride, not just the dirt under your tyres.
The Nepal MTB Trail Rating System
Most systems abroad give a trail one badge. We give every route two marks: a colour grade for the technical difficulty and effort, and an altitude band for the elevation. A long, remote or exposed route also gets a warning flag.
Axis 1: Colour grade (technical difficulty and effort)
Colour grade | Difficulty level | Also called | Who it suits | Effort | Technical skill |
Green 🟢 | Easy | Level 1, beginner | Beginners and all levels | Low | Minimal |
Blue 🔵 | Moderate | Level 2, intermediate | Intermediate riders | Medium | Some |
Red 🔴 | Hard | Level 3, advanced | Experienced riders | High | Advanced |
Black⚫ | Challenging | Level 4, expert | Pro and seasoned riders | Very high | Expert |
Axis 2: Altitude band (the Nepal-specific part)
Band | Elevation | What it means |
A1, Low | Below 2,500 m | Altitude is not a real factor. Pokhara and the Kathmandu Valley. |
A2, High | 2,500 to 4,000 m | Thinner air. Acclimatisation starts to matter. |
A3, Extreme | Above 4,000 m | Serious altitude. Acclimatisation is required, and any climb feels far harder. |
Optional flag, Remote or Exposed: long days with no bail out point, river crossings, or cliff exposure. This idea is borrowed from the International Trail Rating System, which treats wilderness and exposure as difficulties in their own right.
Grade criteria at a glance
What we judge | Green 🟢 | Blue 🔵 | Red 🔴 | Black ⚫ |
Gradient | Gentle, mostly flat | Rolling, short steep bits | Steep, sustained | Very steep, hike-a-bike sections |
Surface | Smooth and firm | Variable, small rocks, gravel | Rough, rocky, roots, loose | Very rough, scree, rock, unpredictable |
Obstacles | None or easily avoided | Small roots and rocks | Boulders, drop-offs, tight switchbacks | Big drops, committing technical sections |
Exposure | None | Minimal | Some, above cliffs | High, with serious consequences |
Typical distance | 1 to 3 hours | Half to full day | Full day or multi-day | Long multi-day expeditions |
Typical altitude | A1 Low | A1 to A2 | A2 to A3 | A3 Extreme, high passes |
How a rating reads
Putting the two marks together tells a rider in one line that a Blue trail in Pokhara and a Blue trail at 3,800 m are not the same day out:
Route | Rating | Highest point |
Fewa Lake Loop, Pokhara | Green, A1 Low | around 800 m |
Pame Valley, Pokhara | Green, A1 Low | around 800 m |
Kathmandu Valley loops | Green to Blue, A1 Low | around 1,400 m |
Sarangkot singletrack, Pokhara | Blue, A1 Low | around 1,600 m |
Upper Mustang to Lo Manthang | Red, A3 Extreme, Remote | around 3,840 m |
Manaslu Circuit, Larkya La | Black, A3 Extreme, Remote | 5,106 m |
How our system compares to the official ones
Our colours map directly onto the official trail-rating systems you may have seen at trail centres abroad. The difference is what each one measures.
System | Where from | Levels | What it measures | Altitude? |
Nepal MTB (ours) | Nepal | Green, Blue, Red, Black, plus altitude band | Technical difficulty, effort, distance and altitude | Yes |
IMBA Trail Difficulty Rating System | USA and worldwide | White, Green, Blue, Black, Double black | Trail width, surface, gradient, technical trail features | No |
UK trail centre grades (British Cycling, Forestry Scotland) | UK | Green, Blue, Red, Black, plus Orange | Surface, gradient, technical features, fitness | No |
Singletrail-Skala (STS) | Germany and the Alps | S0 to S5 | Technical difficulty only | No |
International Trail Rating System (ITRS) | Swiss Bike Park and IMBA Europe | Four separate axes | Technical difficulty, endurance, exposure, wilderness | Indirectly |
Almost every Western system was built for short, signposted, purpose-built loops at low to moderate altitude, and they mainly grade the trail surface and technical features. Of the official systems, the closest to our thinking is the ITRS, which also treats endurance, exposure, and wilderness as real difficulties rather than afterthoughts.
The four grades explained
Easy → Green
A relaxed, enjoyable ride for any level, including complete beginners. Green trails are fast and flowy with a smooth, firm surface. Climbs and descents are gentle, there are no real obstacles or tricky moves, and the days are short. Great for families and first timers. Good examples are the Fewa Lake loop and Pame Valley around Pokhara, and the gentler routes in the Kathmandu Valley, all at low altitude.
Moderate → Blue
The right fit for intermediate riders with some off-road experience. Expect climbs and descents of varying steepness and length, with small rocks, loose gravel, and the occasional switchback that asks for decent handling and balance. Nothing extreme, but you will work for it. The Sarangkot singletrack above Pokhara is a classic Blue.
Hard → Red
Built for experienced riders with real technical skill and good stamina. Red trails throw in steep, sustained climbs and descents over bigger boulders that demand precise line choice and confident control. Add slippery sections near water crossings, occasional exposure above open cliffs, and rough ground laced with rocks and roots. At altitude it is harder again. Much of Upper Mustang sits here, rated Red at extreme altitude.
Challenging → Black
The ultimate test, for seasoned and professional riders only. Black routes combine high altitude climbs that punish your endurance with technical descents over loose gravel and slick rock. Expect genuine exposure above high cliffs, sharp switchbacks, steep gradients, hike-a-bike sections, and long technical ground packed with rocks and roots. You need fitness, sharp bike skills, and steady nerves. The Manaslu Circuit, crossing the Larkya La at 5,106 m, is a Black expedition.
Trail features and terms you will hear in Nepal
Knowing the language helps you read a grade. Here are the features that most often decide how hard a Nepali trail rides.
Singletrack: A narrow trail wide enough for one bike. Usually, the best riding in Nepal.
Jeep track or 4WD road: Rough vehicle roads we use to link singletrack, common in Mustang and the high country.
Switchback (hairpin): A tight turn that doubles back on itself, frequent on Nepal's steep hillsides.
Stone steps: Stone-paved village staircases, a Nepal classic that can appear on a climb or a descent.
Rock garden: A section of loose or embedded rocks that tests your line choice and balance.
Scree: Loose small stones on steep slopes, common high in the mountains.
Drop-off: A sudden vertical step down in the trail that needs technical skill.
Exposure: An open edge with a serious consequence if you fall, for example, off a cliff above a river.
Water crossing: Rivers and streams, often slippery, increase the difficulty of a route.
Technical trail feature (TTF): Any natural or built obstacle, from roots and rocks to steps and bridges.
Hike-a-bike: Ground too steep or rough to ride, where you carry or push the bike. Common on high passes.
How to choose your grade
When in doubt, pick one grade lower than you think and step up once you feel good, especially because of the altitude. Give yourself time to acclimatise before any A2 or A3 ride, drink plenty of water, and never rush to height. Tell us your fitness and riding background, and we will recommend the right colour grade and altitude band, and our guides can adjust the route on the day to match how the group is riding. If you are still choosing a bike, ask us about the best mountain bike for the route, since tyre choice and gearing matter as much as the grade itself.
Safety and responsibility
Mountain biking off-road carries real risk, and the consequences are higher in remote, high country. Always ride within your limits, wear a helmet, check your bike before you ride, and respect the weather and the altitude. Our grades are an honest guide, not a guarantee. Conditions change with the season, and a Green trail after heavy rain can ride like a Blue. When you ride with us, our guides carry first aid, know the bail out points, and will turn a group around when that is the right call.
Frequently Asked Questions
Does Nepal have an official mountain bike trail rating system?
No. There are no bike parks, and the national Cycling Association has not graded the trails. What you see is each tour operator's own labelling, which is why grades are not consistent between companies. Our colour plus altitude system is our attempt to make it clear and honest.
How many trail grades or levels does Nepal use?
We use four difficulty levels: Green (easy), Blue (moderate), Red (hard), and Black (challenging), from beginner-friendly up to expert only, each paired with an altitude band.
What do the mountain bike trail colours mean?
Green is easy, Blue is moderate, Red is hard, and Black is challenging or expert. The colours follow the same logic used across the UK and Europe. We add an altitude band because a Blue trail high in the mountains is much tougher than a Blue trail near Pokhara.
How is your system different from IMBA or the UK Green, Blue, Red, and Black grades?
Those systems were designed for short, signposted, purpose-built trail centre loops at low altitude, and they mainly grade the trail surface and technical trail features. Our grades the whole ride, including altitude, distance, and remoteness, because that is what actually makes a Himalayan route hard.
Does altitude affect a trail's grade in Nepal?
Yes, and this is a big difference from other countries. Thin air at high elevation makes any trail feel much harder than the same trail at sea level, so high altitude routes carry a higher altitude band. Always factor in elevation when you read a rating here.
What makes a trail Red or Black instead of Green?
Steeper and longer climbs and descents, rougher surfaces with rocks and roots, technical features like switchbacks and exposure, longer distances, and higher altitude all push a trail up the scale. A ride can be Red on altitude and distance alone, even without much technical riding.
Which grade is best for beginners?
Green. Smooth, flowing terrain, gentle gradients, no tricky obstacles. Good options include the Fewa Lake loop and Pame Valley near Pokhara, and the gentler Kathmandu Valley routes, all at low altitude.
What if I am not sure which grade suits me?
Choose one grade lower and build up. Tell us your fitness and experience, and we will match you to the right route, and our guides can adapt on the day.
