Sun Sibei

Sun Sibei is a Chinese cyclist who competes in freestyle BMX. She is the reigning world champion having won the gold medal at the UCI Urban Cycling World Championships 2025. She was previously a silver medalist at the 2023 UCI BMX Freestyle [World Championships] and 2024 UCI [Urban Cycling World Championships].

Early life

She is from Hebei Province, and took part in the martial art Wushu prior to being introduced to Freestyle Park in 2018.

Career

Coaches by Daniel Dhers, she was the silver medalist at the 2023 UCI BMX Freestyle World Championships in Glasgow, Scotland.
In early 2024, she was selected to compete at the 2024 Olympic Qualifier Series. She won the women's BMX Freestyle Park at OQS Shanghai. That year she reached number two in the world rankings.
In October 2024, she won the UCI BMX Park Freestyle World Cup Women’s Final in Shanghai. In December 2024, he won silver at the 2024 UCI Urban [Cycling World Championships] in Abu Dhabi.
In November 2025, she won the gold medal in the freestyle park at the UCI Urban Cycling World Championships 2025.