DateExpected
Mid September 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Longchaumois to Espace Loisirs, Arbent
Arbent, Ain
Countdown
September
The shorter way across: 85 km from Longchaumois to Arbent with about 2,400 m of climbing. Still a proper mountain bike marathon, just with less of the day to fill.
Key facts
01Riders must be 19 or older
02French championship titles need French nationality and an FFC or UCI-affiliated licence
Create a free training plan for the La Forestière VTT 85 km
7-day free trial, no card required
The course
The route
Arbent
Distance85km
Total climb2,424m
StartElevation
0 kmDrag map to rotate79.0 km
Weather
Mid-September, Arbent
20°CTypical high
10°CTypical low
3°CColdest in 20 years
46%Days with rain
Highs around 20°C and lows around 10°C, but it has dropped to 3°C. Rain on 46% of days.
NASA POWER data, 2006-2025, the week either side of race day
Results
Course verified. Results not yet available.
Organiser
OrganiserAssociation LA FORESTIERE
Websitela-forestiere.com
Instagram@la_forestiere_officiel
Running since1991
Training
Training for the La Forestière VTT 85 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a La Forestière VTT 85 km plan targets
Typical sessions
85 km with 2,424 m of climbing
Endurance and fatigue resistance over the full distance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long endurance rides building toward the full distance
Threshold and sweet-spot work for sustained power
Sustained climbing repeats on real gradients
Terrain and skills practice specific to the course
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your La Forestière VTT 85 km plan.
7-day free trial, no card required.
Other races at La Forestière VTT
More events in September in France
Alps DivideExpected Early September 2027 · Alpine traverse → Menton→L'Échappée MICHELIN Paris-ClermontExpected Early September 2027 · Clermont-Ferrand→Le Trail du GraalExpected Early September 2027 · Néant-sur-Yvel→Saint-Jeoire Trail FestivalExpected Early September 2027 · Saint-Jeoire→Trail de la MeijeExpected Early September 2027 · Commensacq→Ultra Trail Haut-Koenigsbourg®Expected Early September 2027 · Kintzheim→
