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.

BIKE 05/2014
Reading time 1:20 minutes

THESE ARE THE TESTING METHODS OF BIKE

To achieve the most realistic load possible BIKE tests with load spectra recorded in practice. All in all three handlebar/stem combinations per manufacturer had to prove themselves.

MULITLOAD AND EN-TEST

Three handlebar/stem combinations respectively had to show how safe they are in two different tests carried out at the independent test institute Zedler. We started with the test according to the DIN EN 14766 standard. Although this is mountain bike standard, it no longer meets the requirements of today’s riding style and loads. The other two test samples had to undergo a finely mixed Multiload test (see picture) based on extensive real data. For the best practice-oriented simulation possible additional fittings, such as brake levers and lock-on grips, were mounted according to the manufacturers’ specifications. The graphics below shows the individual test blocks which every handlebar/stem combination had to undergo. The loads are divided in in-phase and out-of-phase situations with various forces. Every 4000 load cycles were followed by four high out-of-phase loads simulating hard landings or falls. The test stopped with the breakage of the handlebars or the reaching of one million load cycles.