June 20, 2025 – The UCI recently released a set of proposed regulation changes, including a controversial new rule which sets a minimum handlebar width of 40 cm. This rule endangers cyclists and ignores fundamental principles of bike fit and safety. The Cyclists’ Alliance Rider Council opposes this regulation because it puts riders at risk. Female cyclists face the greatest impact from this arbitrary restriction on minimum handlebar width because they are statistically smaller in stature, with narrower shoulder widths.
Research from professional bike fitters and biomechanics experts confirms that equipment sizing directly affects rider safety and performance. Riders who cannot use properly fitted equipment will experience pain, reduced control, and increased injury risk. The UCI claims this change will improve rider safety, but requiring riders to use equipment that doesn’t match their body measurements creates new hazards. If riders are forced to use ill-fitting bikes, they will be at risk of compromised bike control and confidence using oversized handlebars, especially during intensive and dynamic race conditions and potential long-term injuries.
We urge the UCI to reconsider this decision and withdraw this proposal and instead prioritize evidence-based measures that protect and enhance all riders’ well-being and race safety.
“This rule disregards the realities of our bodies and how we race, creating unnecessary risk. Every rider deserves equipment that fits and supports their safe performance. We welcome the opportunity to consult with the UCI to ensure safety regulations are based on evidence, not assumptions”.
— Ellen van Dijk, TCA Rider Representative
TCA remains committed to advocating for evidence-based, inclusive policies that support all riders, regardless of gender or body type.
References
Lin, Z.-J., Tsai, P.-C., & Chen, C.-H. (2025) New research shows standard bicycle handlebars too wide for most women, increasing fatigue and discomfort. [Press release]. Journal of Functional Morphology and Kinesiology. https://doi.org/10.3390/jfmk10010028
