
The full tour of the Chartreuse massif in a day: Col de Porte, Saint-Pierre-de-Chartreuse, Col du Cucheron and Col du Granier, a run over to Chambéry, then back via Les Échelles and the Col de la Placette. A true loop, between forests and cliffs.
Base map © IGN · Géoplateforme. Indicative route — check that the passes are open before you set off.
Nine stops scouted along the 143 km loop, all reachable without leaving the road.
The Chartreuse rides like a fairground ride. Over 143 km the loop strings together the Col de Clémencières (620 m) on the way out of Grenoble, the Col de Palaquit (1,154 m), the Col de Porte (1,326 m, the high point of the day), the Col du Cucheron (1,140 m), the Col du Granier (1,134 m), the Col de Couz (636 m) and the Col de la Placette (594 m) on the way home. Forest bends, wide hairpins and good sightlines: the ideal massif for a first full day of riding in the Alps.
Between the Col de Porte and the Col du Cucheron the route passes within about a hundred metres of the monastery founded by Saint Bruno in 1084, cradle of the Carthusian order. It cannot be visited: the monks live in silence and solitude. The Grande Chartreuse museum, housed at La Correrie two kilometres away, tells nine centuries of monastic history and sits directly on the route.

To the north the road runs beneath Mont Granier and its huge wall, the one that collapsed in November 1248 in one of the largest historical landslides in Europe. From the pass the view drops onto the Combe de Savoie and the Apremont vineyards, then the descent opens onto Chambéry and its old town.
The loop closes through Les Échelles, where the old royal road of the Dukes of Savoy was cut into the cliff in the 17th century, then climbs the Col de la Placette to drop back down to Voreppe and Grenoble. Not a single kilometre ridden twice, and no toll motorway.

Yes. Most of our Triumph and BMW fleet is available in A2 (restricted to 35 kW), and no section of this loop calls for particular experience. It is the route we recommend for a first day of mountain passes.
April to October. The high point is the Col de Porte at only 1,326 m, which makes the massif rideable very early in spring and late into autumn, unlike the high passes of the Oisans.
No, the monastery is closed to visitors: the Carthusians live there in silence. The Grande Chartreuse museum at La Correrie (2 km away) is open to the public and sits right beside the route.
About 3 h 30 of riding for 143 km, so a full day including photo stops, lunch and a visit. Pick-up is at the agency in Grenoble (9am–6pm), or optional 24/7 self-service so you leave whenever suits you.
Our Triumph and BMW bikes (A2 and A licence) are prepped, insured and serviced. Book online, self-service pick-up 24/7 in Grenoble.