Simply because the biking world is getting ready for one of many greatest single-day races of the season, the UCI has introduced its first tips on the topic of hookless rims with tubeless tires. The announcement is pretty temporary, and breaks down their plans for the “quick, medium, and long run.”
Primarily, for now they only advocate groups and riders to comply with the ISO requirements 5775-2:2021 and 5775-1:2023. These requirements ” present a framework for the compatibility of tire and rim widths on bicycles.” Stating that these requirements haven’t all the time been revered, the UCI factors out that adherence has been made harder because the European Tyre and Rim Technical Organisation (ETRTO) requirements haven’t all the time aligned with the ISO requirements.
Wanting forward, it’s clear that the UCI hopes to work with all events to provide you with a extra concrete answer, however for now, all they will do is advocate that tires and rims are inside spec.
From UCI:
Following its assertion on current incidents involving using hookless rims with tubeless tyres, the Union Cycliste Internationale (UCI) is in the present day able to concern its first tips on the topic for the quick, medium, and long run.
The UCI’s preliminary assertion got here in mild of a number of incidents which have occurred in skilled street biking during the last two years at occasions on the UCI Worldwide Calendar, together with this 12 months at two UCI WorldTour occasions – the UAE Tour and the Strade Bianche (ITA) –, in addition to considerations expressed by street biking stakeholders about rider security.
Within the quick time period, the UCI reminds groups and riders of the requirement set out in article 1.3.018 of the UCI Rules, which imposes compliance with Worldwide Organisation for Standardisation (ISO) requirements 5775-2:2021 and 5775-1:2023 in biking competitions. These requirements present a framework for the compatibility of tyre and rim widths on bicycles. The UCI notes that the norms outlined in these ISO requirements haven’t all the time been revered and doesn’t rule out the likelihood that this will have been a contributing think about among the incidents encountered.
The UCI additionally recognises that compliance with the ISO requirements by groups and riders is made harder by the truth that producers base their suggestions for compatibility between tyres and rims on the suggestions offered by the European Tyre and Rim Technical Organisation (ETRTO), which haven’t all the time been aligned with ISO requirements.
Additional data on articles 1.3.018 and 1.3.002 of the UCI Rules, which each check with the ISO requirements talked about, is out there within the UCI Technical Rules Clarification Information.
Within the medium time period, the UCI has taken the choice to mandate SafeR – the newly fashioned entity devoted to security that brings collectively all stakeholders {of professional} street biking – to work with all events involved, together with groups, riders and the biking trade, to discover potential enhancements and clarifications concerning using hookless rims with tubeless tyres that will be related to include into the UCI Rules. SafeR will present their suggestions, to be thought of for software for the 2025 season, in a report with the purpose of constantly bettering rider security. Specifically, groups, riders and Commissaires are requested to report any incident involving hookless rims with tubeless tyres that will happen and to make sure that the circumstances of the incident could be analysed intimately.
In the long run, the UCI will perform an in-depth evaluation of the appropriateness of the present necessities for using several types of tools in competitors, particularly wheels, to make sure that these necessities assure the security of riders, are tailored to skilled biking, and don’t rely solely or for essentially the most half on the diligence and inner processes of producers.
