Accidents occurred in pro racing allegedly linked to disc brakes.

Twice within the last 10 months riders and other stakeholders of the cycling sport accused disc brakes of having caused injuries to a rider or their material. The WFSGI has taken these complaints very seriously and investigated both accidents in order to have a clarification before making any statement.



1. Ventoso accident Paris-Roubaix 2016

The WFSGI asked forensic doctor Ulrich Zollinger based in Bern, Switzerland to analyze the wound of Francisco Ventoso as well as the entire course of his accident.

- Accident report forensic doctor

The WFSGI also commissioned the German bicycle accident investigator Dirk Zedler to make and independent investigation & risk assessment of the same accident as well. - Accident report Zedler

2. Doull accident Abu Dhabi 2017

The investigation into the accident of Owain Doull is still ongoing and the available material is being studied carefully. After the first material and image investigations, we can say that a disk brake accident can, most likely, be excluded. See also here:



UCI Disc Brake Review group

The UCI has installed a working group consisting out of members from the WFSGI (Industry), the rider representative CPA, the team’s organization AIGCP and the UCI itself. This working group closely monitor’s the trial of disc brakes in road racing, reported incidents and studies potential improvements for the usage of disc brakes in road racing. The experts from the different organizations in this working group are empowered for making proposals to the UCI equipment commission.

Position of industry and riders

Today the industry provides both brake systems and leaves the decision as to which system to use (rim or disc) to each team and/or rider. A fact that was confirmed by all riders using disc brakes in races so far. The industry encourages riders to make some first experience and testing with disc brakes before they provide comments.



Mixed peloton

Safety is a major concern to the industry and this towards all cyclists. One of the concerns in pro racing is the fear of different brake performance within the peloton leading to potential incidents.

It shall be known that some material/combinations currently used in pro racing already show a clear difference in brake performance. Some combinations may not even live up to the legal requirements set by international standards (CEN/ISO) for commercial bicycles.

That’s why the UCI working group has identified this key point and is looking into ways to improve the level of safety for pro riders by enforcing minimal standards of brake performance. That can be taken as a starting point to eliminate concerns of different braking performance regardless the brake system used.

Potential Cuts

Evidence on cuts under racing conditions are not available since there was no reported accident with disc brakes so far. Nevertheless, the industry agreed with UCI, CPA and AIGCP on rounded disc brake rotors in order to react on the perceived risk by riders, as well as to support a faster exchange of the wheels from neutral support and team’s service. It has to be mentioned that the ISO standard 4210-2; 4.2 does already require exposed edges on the entire bicycle to not be sharp.

Disc brake equipped bicycles in the market

Today our industry has sold already more than 15 million disc brake bikes to the public market. Most of these products are sold for MTB or cyclo-cross, city use, but also the number of products sold for road racing is growing rapidly.

The argument that pro racing is different than amateur racing or the commercial market is absolutely heard by the industry as well. Nevertheless, a fair chance of a testing period should be acceptable given all above facts.

The WFSGI will continue to work closely with the UCI, CPA and AIGCP in order to make a smooth introduction of disc brakes into professional road racing.

For more information, please contact:

Robbert de Kock, WFSGI President and CEO/ Email: rdekock@wfsgi.org; Phone: +41 79 434 14 77



About the WFSGI

Global solutions through international teamwork – The World Federation of the Sporting Goods Industry (WFSGI) was founded in 1978 and is the world authoritative body for the sports industry officially recognized by the IOC as the industry representative within the Olympic Family. The WFSGI is an independent, non-profit and non-governmental association formed by sports brands, manufacturers, suppliers, retailers, national federations and other sporting goods industry related businesses. The WFSGI plays a strategic role in the support and promotion of the sporting goods industry worldwide. The WFSGI promotes free and fair trade and provides platforms for the intergovernmental cooperation with regards to the International Organizations interested or affected by sports. Its aim is also to expand the cooperation on the protection of intellectual property rights and improve human rights issues related to working conditions. All this can be done through contacts with International Organizations such as the ILO, WTO, WHO, UN but also through International Sports Federations (FIFA, IAAF, FIVB, etc.) and the IOC, via the exchange of information and clearing house on issues and topics developed by WFSGI’s various committees.