Mammoth Gran Fondo finner sted lør. 12. sep. 2026 i Mammoth Lakes, USA. Hovedruten er 164 km.
A high-altitude Eastern Sierra road gran fondo, its headline century climbing from an 8,000 ft base. — 164 / 113 / 68 km · 2,074 m climb · start 07:00
Offisiell arrangementsside