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All about the new 3-step test

To remain in step with the fast developing market for electric bikes, ExtraEnergy introduced a new test procedure in 2009. As before, the new test relies heavily on real test rides. For the first time, tests are also done in the laboratory. 

With the new procedure, the test period is significantly shorter. It simplifies the logistical effort between the two test locations in Tanna and Kichheim/Tech and enables the faster publication of the test results. In this way, tests can now also be conducted more often in a year. It takes about 10 days to complete a test, excluding the laboratory tests conducted afterwards.

The test in 3 steps
As before, actual test rides are the most important part of the ExtraEnergy test. A novelty is, that end clients may also participate in the public test rides. In addition, trained test riders ride all bikes in Tanna, fitted with elaborate measuring technology. For the first time in 2009, ExtraEnergy collaborates with test laboratories, which test the mechanical strength of the bikes and check whether they conform to the standards. 

1. End clients test at public events
At the Electrorad Fair in Lorsch and the Spezi in Germersheim in April 2009, interested people may volunteer as test riders, try the test bikes out and evaluate them afterwards - all for the fun of it. Before they start riding, they have to pass through a number of stations, where they, for instance, have to carry their bikes up steps, or identify batteries which fit to their bikes. The results of these ergonomics tests, which reveal a lot about the suitability of bikes for daily use, are included in the overall evaluations. In total, every test bike is subjected to about 100 rides with guest test riders during the test and supporting program in Tanna.

2. Measured rides in Tanna
Five testers of different ages and physical fitness ride every bike fitted with a number of measuring instruments. The new measuring technology allows 30 bikes to be tested at the same time. The test rides are conducted over a fixed stretch of 18 km, snaking through Tanna and the surrounding area. Included are hilly and flat stretches, as well as tarred and gravel roads. 

No longer do riders ride test bikes until the batteries are empty, as was the custom in previous years, but only a single round on the test track. In this way, the basis of all tests stay the actual experience of the cycler and the effort he put in. Because, in the end, what is important, is whether a cycler enjoys the ride with a bike. No testing device or other machine can ever determine that. This major part of the test is conducted in Tanna. Admittedly, the test riders are still recruited by ExtraEnergy, but the manufacturers participate in the testing. They are, when possible, present during the duration of the test and so become eyewitnesses to the test procedure. Technical breakdowns can quickly be rectified on location. At the same time, the test offers the manufacturers the excellent opportunity to build their contacts to other manufacturers and get to know the products of other manufacturers - to the benefit of all. 

3. Laboratory tests
Since a growing number of pedelecs suffered frame breaks in recent years, ExtraEnergy now tests the mechanical strength of all test bikes in collaboration with VELOTECH in Schweinfurt, where the bikes are subjected to an endurance test on a special testing device. 
More about VELOTECH 

Another problem is the conformity to the legal rules and guidelines, which get ever more complex as far as the electronics are concerned (eg. electro-magnetic compatibility). To offer a practical guide, all bikes in the 2009 test are checked for their conformity to the standards by the SLG Institute in Chemnitz. 
More about SLG



7 - 12 September 2021, IAA, Munich, Testtrack

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