The Taiwan KOM Challenge is a one-day road cycling race held annually in Taiwan.

Created in 2012, the event is recognized as one of the most difficult cycling races in the world due having nearly 3500m of climbing over a 105 kilometer course.

[2] The route starts in the coastal eastern city of Hualien at around sea level, heads north on Highway 9, and turns left into Highway 8, where it enters Tarako National Park, which is a deep gorge.

The route gradually gains elevation as it goes westwards, ultimately ending above the clouds in Wuling, near Mt Heuhansan, which at 3275m (10,744 ft) is the highest paved road in Taiwan.

[3] Because of the significant increase in elevation, altitude sickness is a concern as well as the sudden change in temperature and weather.