Films showing the bicycle test laboratory, the Expert’s Report division GDFS – Gesellschaft der Fahrrad-Sachverständigen mbH and Zedler – Institut für Fahrradtechnik und -Sicherheit GmbH.
Close-up bicycle technology
The Zedler TV films will give you an insight into the work of the bicycle and e-bike experts, the test engineers, the bicycle mechanics and the experts of the technical documentation for bicycles.
SWR – "Marktcheck"
Tuesday, June 18, 2024
E-bike - how customers can fall into the 'total weight trap'. The total weight of an e-bike is often underestimated. What you should keep in mind during production and testing, when buying and selling in order to ensure customer safety.
Watch Dirk Zedler in the 8-minute report.
SWR – "Marktcheck"
Tuesday, March 26, 2024
What you should bear in mind when buying a rechargeable battery? How dangerous are rechargeable batteries? How should rechargeable batteries be disposed of properly? Watch the entire report from minute 18:06 to 34:37 and Dirk Zedler with his team from minute 19:25 to 23:25.
SWR – Landesschau Baden-Württemberg
Tuesday, March 26, 2024
What you should bear in mind when buying a rechargeable battery? How dangerous are rechargeable batteries? How should rechargeable batteries be disposed of properly? See the entire report from minute 48:20 to 52:53 and Dirk Zedler with his team from minute 48:58 to 51:44.
RTL-News
Friday, February 16, 2024
Dirk Zedler was interviewed as an expert for RTL-News on the subject of the Babboe recall. The report broadcast on Nachtjournal is not available in RTL's media centre.
SWR – “Marktcheck“ checks discounter Lidl
Tuesday, July 25, 2023
“Marktcheck“ checks out products of discounter Lidl, among the products an e-bike for 1,500 euro. Does such a cheap e-bike prove itself in practice when tested in accordance with serious standards. See Dirk Zedler as of minute 16:55 and 18:58.
SWR – “Marktcheck“ checks bicycle bags
Tuesday, July 18, 2023
The holiday season has just begun and the SWR TV consumer programme “Marktcheck“ checks four bicycle bags, among them two known brands and two cheap challengers. See Dirk Zedler as of minute 15:19 and 18:04.
Kabel eins – Abenteuer Leben am Sonntag
Sunday, June 4, 2023
Is it worth buying a cheap e-bike online? See the competition between two reporters in buying the best cheap e-bike online. Dirk Zedler sets the criteria for the e-bike purchase (from minute 55:00) and decides who wins and who loses (from minute 1:00:55).
ARD Story: The China trap: how blackmailable are we?
Thursday, March 9, 2023
Documentary on the topic “Germany's fatal dependence on China”. Also interviewed as an expert: Company founder and managing director Dirk Zedler (from minute 2:09 to 4:35), who explains the effects of a trade stop with China on the cycle industry in Europe and worldwide.
regioTV - “Bicycles need to become more durable”
Wednesday, June 22, 2022
Cycling in Stuttgart has a green image. Currently, many bicycle companies are signing the Bike Charter. As a pioneer in the field of sustainability, the Zedler Group wants to be a good example for other companies. That's why they brought the Bike Charter to the start six months ago.
SAT1 Breakfast TV - 16“ kids' mountain bikes in the test on TV
Monday, April 11, 2022
3 kids' mountain bikes in comparison: Which bike is best?
SAT1 Breakfast TV – E-bikes in the test
Thursday, October 28, 2021
“How much e-bike do you get for little money?” Three e-bikes for less than 1000 Euros in the test.
SWR – "Marktcheck" checks e-bike workshops
Tuesday, May 25, 2021
Random e-bike workshop test with e-bikes that were taken to service after several years of use.
SWR – "Landesschau" checks bike racks
Tuesday, September 22, 2020
Dirk Zedler explains which bike rack system is most suitable for which type of vehicle.
SWR – "Marktcheck" checks bike racks
Tuesday, September 22, 2020
Subject of the programme: safety and usability of bike racks for cars. Dirk Zedler provides information and explains where material, construction or operating errors may occur.
SWR – "Marktcheck" checks Decathlon
Tuesday, August 12, 2020
Do you get good quality at a low price or disposable products? Decathlon-bicycles on the testing systems of Zedler-Group. Dirk Zedler evaluates the test results.
SWR – 90-seconds safety check for your bike
Tuesday, May 19, 2020
"Cycling without risk": Dirk Zedler gives tips and tricks on how to make your bike fit for spring.
WDR – Bicycle or electric-assisted bike
Wednesday, May 6, 2020
What’s the difference between a bicycle and an electric-assisted bike and what characterizes a good bike? This question was raised by host Yvonne Willicks in her German TV show "Haushalts-Check".
SWR - Low-priced, useful, good? Bicycles
Tuesday, September 25, 2018,
Tuesday, July 30, 2019,
Tuesday, May 26, 2020
Finding a parking lot everywhere, avoiding the jam – the dream of every car driver has already become true for cyclists. But with which bike do you have most fun?
SWR - With souped-up e-bikes on the fast lane
Thursday, July 5, 2018
Retiree bikes, as if! Around 300,000 souped-up e-bikes are allegedly rolling on Germany’s roads. Sometimes they are caught at speeds of nearly 70 kmh/44 mph. (...)
SWR - Low-priced bicycles at the test
Tuesday, May 22, 2018
Safety risks due to assembly and quality deficiencies - Low-priced bicycles from Real, Lidl, Decathlon and Otto pose major risks: In parts, the assembly manual is missing, (...)
NDR - electric bicycles at the test: dangerous deficiencies
Monday, June 26, 2017
Electric bicycles, also referred to as e-bikes or electric-assisted bikes, become more and more popular. Cycling is less physically demanding as with a common bicycle.
AzubiTV.de - Two wheeler mechatronic technician
Thursday, June 16, 2016
On your motorcycle you feel like an "easy rider"? Or do you prefer mountain bikes?
WDR – The bicycle as alternative in the city?
Wednesday, May 18, 2016
Especially in the German state North Rhine-Westphalia, number one of congested regions and in a city like Cologne where car drivers spend all in all 65 hours per year in traffic jams, switching to the bicycle could be reasonable. (...)
Kabel eins – Cheap bicycles tested
Wednesday, April 27, 2016
We test cheap bicycles from the discount store - and unveil devastating safety deficiencies! Other topics: (...)
NDR – Cheap bicycles: often poor safety
Monday, April 18, 2016
By order of the German TV program "Markt" experts examined the bicycles in a laboratory specialized in bicycle technology in Ludwigsburg in accordance with current test standards. (...)
Regio TV – "Hero of the new mobility"
Monday, November 16, 2015
Interview with Dirk Zedler
NDR - Safety deficiencies in the case of cheap bicycles
Monday, August 3, 2015
Bicycles are on sale in the DIY store and in the discount store for less than 250 Euro. In most cases the low priced bicycles are preassembled: The buyer needs to mount the pedals, tighten the bolts and bring the handlebar in the correct position. (...)
Prosieben – Path of the bicycle from China
Monday, July 7, 2014
A bicycle manufactured in Germany costs almost 600 Euro, one made in China around 200 Euro. What’s the reason for this difference in price and what does this mean for the quality? (...)
ARD Plusminus / E-bikes - Threatening safety deficiencies
Monday, July 10, 2013
Bicycles with auxiliary motor - also referred to as e-bikes - enjoy great popularity. Some e-bikes, however, reveal considerable safety deficiencies and are apparently not checked often enough. (...)
