GT20 Corse Moto – Le Guide Complet pour Motards | Sisunki
Tracing the backbone of Corsica by following its mountains is an old dream for any biker. With the GT20 Corsican motorbike route, this dream becomes a concrete itinerary connecting Bastia to Bonifacio by taking the island's most beautiful secondary roads. Originally designed for cycling, the GT20 is a route of about 600 km with a total ascent of over 10,000 m. By motorbike, it transforms into an immersive journey through sea, forests, and villages clinging to the hillsides. In this guide, we offer a 100% biker's perspective on this route to help you prepare for a smooth and memorable adventure.
The GT20 by Motorbike: The Complete Guide to Crossing Corsica via the Mountains
Reading time: ~12 min
- Summary
- GT20 Corsica motorbike: presentation and specifics
- GT20 motorbike itinerary from Bastia to Bonifacio
- Preparing your GT20: bike, equipment, and fitness
- Practical tips for a successful and safe GT20 motorbike trip
- Frequently asked questions about the GT20 by motorbike
- Ready to carve your own path on the GT20
GT20 Corsica motorbike: presentation and specifics
The GT20 (Grande Traversée de la Corse) is a marked route connecting Bastia to Bonifacio via the interior of the island. Over approximately 600 km, you'll tackle passes, balcony roads, and village crossings, mostly on quiet secondary roads. The cycling version has 12 stages of about fifty kilometers each, but for motorcyclists, everyone adapts their schedule according to their pace and breaks.
| Indicator | Value |
|---|---|
| Total distance | ≈ 600 km |
| Cumulative positive elevation gain | +10,000 m |
| Highest point | Col de Vergio ~1,500 m |
| Protected area crossed | Corsica Regional Natural Park |
| Landscapes | Sea & mountain panoramas |
Designed for road cyclists or e-bike riders, the GT20 is perfectly suitable for motorbikes thanks to its continuous paved surface. For motorcyclists, the appeal lies in the combination of technical turns, spectacular landscapes, and authentic villages where it's easy to make a stop.
GT20 motorbike itinerary from Bastia to Bonifacio
Cap Corse and Balagne: from the north wind to perched villages
Starting from Bastia, head up Cap Corse to Centuri (≈ 58 km) via the Col de la Serra (360 m) offering views of both sides. Narrow roads, tight bends, and regular viewpoints punctuate this section. From Centuri, descend towards Saint-Florent then the Balagne, crossing the Col de San Colombano (690 m) before reaching Belgodère then Calenzana, amidst perched villages and views of the Gulf of Calvi.
From Balagne to the Gulf of Porto and the Col de Vergio
From Calenzana, the route plunges into the mountains to Galéria, then crosses the Col de Palmarella (≈ 400 m) before the spectacular arrival at Porto. From there, the road climbs towards the Col de Vergio (~1,480 m), the highest point of the GT20, through the Aïtone forest and its Laricio pines. This section, rich in turns and contrasts of light, is a must for any motorcyclist.
The heart of Corsica: passes of Vergio, Verde, and Vaccia
After the technical descent to Corte, the itinerary heads towards Ghisoni via the Col de Croce (640 m). Then come the Col de Verde (1,200 m) and, between Zicavo and Zonza, the Col de la Vaccia (1,100 m) amidst high-altitude forests and wild ridges.
Towards southern Corsica: Zonza, Bonifacio, and the beaches
From Zonza, cross the Col de Bacinu (800 m) then the Ospedale forest before the long descent to the coast. A detour to the Aiguilles de Bavella is well worth it. The arrival at Bonifacio, facing the white cliffs, magnificently concludes this mountainous crossing.
Preparing your GT20: bike, equipment, and fitness
Which motorbike for the GT20?
The GT20 doesn't require an extreme machine; an agile and well-maintained motorbike is sufficient. Adventure and trail bikes stand out for their comfortable riding position, forgiving suspension for uneven roads, and excellent maneuverability in hairpins. Lightweight touring bikes, roadsters, or classics are also suitable, provided they have impeccable brakes and mixed-use road tires in good condition.
Essential equipment for the rider and passenger
| Recommended equipment |
|---|
| Full-face or modular helmet with clear visor & sun visor |
| Jacket and trousers with protectors, waterproof-breathable membrane |
| Breathable base layers + light fleece |
| Two pairs of gloves: summer and mid-season |
| Motorcycle boots or high-top shoes |
| Packable rain gear |
| Tank bag or soft panniers |
| Repair kit & mini-tools |
| GPS or app reading GT20 GPX tracks |
Don't forget hydration and some snacks, as inland Corsica offers few services off-season. To stay comfortable, wear technical clothing under your gear. If you want to take home a souvenir of the road's spirit, the Ride or Die collection offers suitable casual pieces.
Physical condition and riding technique
Riding several days through mountain passes requires a minimum of endurance and mastery of tight turns. Before you go, ride regularly on small roads, practice your uphill U-turns, and plan realistic stages to allow for flexibility in case of bad weather. When riding in a pair, communicate the plan to your passenger and take frequent breaks to limit fatigue.
Practical tips for a successful and safe GT20 motorbike trip
Ideal duration and stage breakdown
Allow between 5 and 8 days to enjoy the landscapes, villages, and some swimming or hiking stops. The most mountainous sections are between Porto and Zonza. From May to October, conditions are generally favorable; however, watch out for snow or fog at the beginning and end of the season.
Road sharing and safety
- Maintain an appropriate speed, especially on descents and in forests.
- Anticipate blind corners, the presence of wide vehicles, or animals.
- Overtake cyclists with ample clearance.
- Stay vigilant on balcony roads with reduced visibility.
Navigation and service location
Official signage helps with orientation, but download GPX tracks for greater peace of mind and plan for an offline solution. Each village generally offers accommodation and dining options, but off-season, choices may be limited; a specialized guide can facilitate planning.
Frequently asked questions about the GT20 by motorbike
Is the GT20 officially authorized for motorbikes?
Yes, the route uses departmental and communal roads open to all motor vehicles. However, remain attentive to cyclists and hikers by adjusting your speed.
What riding level is required for the GT20 by motorbike?
Good experience with mountain roads is preferable; narrow hairpins, steep gradients, and uneven surfaces require mastery at low and medium speeds. A beginner can tackle certain sections by avoiding bad weather and limiting their daily mileage.
Can you do the GT20 with a passenger or fully loaded?
Yes, provided you travel light, adjust the suspension, and plan for more breaks, especially on long ascents or descents where the motorbike will be heavier.
What is the best season to do the GT20 by motorbike?
From May to October, temperatures are pleasant and roads are clear. July-August offers longer days but also more traffic in tourist areas. Spring and autumn are quieter and more colorful, but require increased vigilance on high passes.
Ready to carve your own path on the GT20
The GT20 Corsica motorbike route is one of the best ways to cross the island by following its mountainous backbone. Between Cap Corse, Balagne, the Gulf of Porto, the high passes of the interior, and the cliffs of Bonifacio, you'll experience a succession of unforgettable turns and emotions. To extend the adventure, explore our Ride or Die blog and discover the Ride or Die collection, available online and from our partners, to take the spirit of Corsican roads with you everywhere.
