- من
- Wesley Williams - The One Wheel Wonder
- ماذا
- 9.71 metre(s)
- أين
- ألمانيا (Stuttgart)
- متى
The tallest rideable unicycle is 9.71 m (31 ft 10 in), achieved by Wesley Williams - The One Wheel Wonder (USA) in Stuttgart, Baden-Württemberg, Germany, on 29 December 2022.
Wesley broke his own record of 8.87 m (29 ft 1 in), set in March 2020.