All about bicycles, electric-assisted bikes, technology and safety in the press

In our daily work as we deal with bicycle safety, technology and user manuals we come across lots of safety risks. The most frequent ones are published in articles of the leading German special-interest magazines TOUR – Europas Rennrad-Magazin Nr. 1, BIKE – Das Mountainbike Magazin Europas Nr. 1 and E-Bike – Das Pedelec-Magazin to make this information important for the sector accessible to a wider public.

For many years now the Eurobike Show Daily accompanying the annual international Eurobike Show has given us the opportunity to publish our perspective on major developments in the cycle industry in full-page articles.

We also speak regularly in independent lectures about all topics relating to bicycle technology and bicycle market. In addition, we are regularly cited by further special-interest magazines or trade journals as well as more and more by radio and television and in their media reports, which shows us that we are completely right with our information. The section NEWS informs you about the latest news from our specialist fields. The reports and publications of this section are listed chronologically or according to topics of interest.

TOUR 12/2017
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11-speed assembly

Reader’s question

I have a Mavic Cosmic Elite wheelset originating from the year 2001 or 2002. I would like to assemble an 11-speed cassette from SRAM. Is this possible from the technical point of view and what do I have to keep in mind?

Reply by Dirk Zedler, TOUR technology expert and bicycle expert

The assembly of an 11-speed cassette on a wheel of that generation is normally no longer feasible. The cassette body is different in width and shows modified screwings on the lockring. For this reason it will most probably be impossible to provide a firm fit of the SRAM cassette. In this area the road bike technology is considered more and more exhausted, as a consequence of which it is increasingly difficult to combine different components. I think you will be forced to also buy a new wheel, whether you like it or not, to be able to ride an 11-speed gear. The question whether it is possible to replace a driver body by an 11-speed driver body, cannot be answered ad hoc. Most probably, however, such a replacement is no longer reasonable under the economic aspect, because this wheel type is offered at quite favourable prices on the internet whereas spare parts are clearly more expensive.

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