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Region: French Alps
Climbing effort: 643 cep
Elevation meters: 775
Steepest kilometer: 9.5%

Steepest 250 m: 11%
Foot: 567 m    Top: 1310 m
Mean slope: 7.5%
Length: 10.0 km

From: les Plaines
Road conditions (2022): good
Other race bikers: 1-5 per hour
Motor vehicles: 10-30 per hour
Scenery and road: (3/5)
Restaurant or bar near top: no

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Other climbs French Alps

The most direct road connection between Aime and Moûtiers is the N90 through the valley of the Isère but for cyclists this road is dangerous. Many parts of the road are bordered by a cycle lane but the lane is mostly narrow, and cars and motorcycles drive fast. It is noteworthy though that the Tunnel de Siaix, which constitutes a part of the N90 here, is not an insurmountable obstacle because separated from the road a "galérie de securité" has been built, which can be used by cyclists. For those who tend to like cycling upwards, two alternatives exist, one on the orographic right bank of the Isère (the D85 and the D85b across the Côte de Montgirod-Hautecour) and one on the orographic left bank of the Isère (the D88 via the Col du Tra, described here). These are quiet or very quiet routes, the roads are not wide and sometimes even very narrow, and generally have many bends and hairpin bends. In short, these alternatives are great for road cyclists. The number of elevation meters of the four climbs varies between 617 and 775.

Coming from Moûtiers, the ascent to the Col du Tra begins on the N90 at the Notre-Dame-du-Pré exit. After a short descent to the Isère (35 meters in altitude), the road winds upward for 8.5 kilometers on a steep hillside through the forest. The road itself is pleasantly steep (8-9%) with only little variation in the gradient. The last kilometer through and past Notre-Dame-du-Pré is easier (6-7%). Among the four climbs between Aime and Moûtiers this one is the hardest (643 climb effort points).