West of Innsbruck and east of Bregens, the Lech am Arlberg & Zurs am Arlberg area has an extensive trail network for mountain biking.
The popular mountain bike rides include:
Spullersee Lake Tour: Lech - Zug - Zug Valley Road - Spullersee Lake - return same route (30km) (if you conditinued on to the Ravensburger Hutte it would add 6km)
Formarinsee Lake Tour: Lech - Zug - Zug Valley Road - Formarinrsee Lake and return same route (31km)
Kriegsattel Tour: Lech - Oberlech - Grubenalpe - Kriegersattel - Zugertobel - Zug - Lech (12km).
Overall, Lech / Zurs is the 17th most popular mountain bike trail of all 65 mountain biking rides in Austria.