Tern Bicycles maker Mobility Holdings, Ltd. It is pleased that its e-bike transport models "GSD" and "HSD" are among the first to exist and even surpass the new "and particularly strict German test standards for cargo bicycles".
Whether ISO 4210 for city/trekking/youth bicycles as well as MTBs and racing bikes or EN 15194 for e-bikes/pedelecs-load bicycles (new German »cargobics«) have so far not been included in the design of security standards and test procedures. Thanks to the growing popularity and spread of this bicycle category, this has changed.
"The construction of bicycles is currently in violent change, and when passengers, luggage load and electric drive are added, the powers that occur quickly escalate," explains Tern boss Joshua "Josh" Hon, "It is really important that security and test standards are developing become to cover these new bike types. In several cases there was no relevant test standard for components that we wanted to test. That is why we are really happy to have EFBE as a partner who helps us develop the test standards to ensure the security of our customers. «
New: Cargobike standard
At the beginning of 2020, a new German standard finally came into force, which is the first to determine the test procedures and safety requirements for load bicycles with and without "e". Both the Tern model »GSD« and the 20-inch tires »HSD« have fulfilled the standard (i.e. DIN 79010: 2020-02 bicycles-transport and load bicycles) in their respective weight classes.
This cargobike standard developed in Germany could even serve as the basis for a future European EN standard that is currently being discussed by a technical committee of the CEN (European Committee for Standardization). In addition, EFBE testing technology GmbH Managing Director Dipl. Ing. (FH) Marcus Schröder, who is considered one of the main authors of the new German Cargobike standard: »We see a lot of load bikes on the streets that do not obviously do not exist more extensively would - and that is pretty worrying. Well -defined test standards are not only important to ensure that the drivers have the necessary confidence in their cargobics if they carry their children with them, but also to follow the manufacturers to follow the basic safety requirements. We are pleased that companies like Tern use laboratory tests to identify weaknesses in their constructions. «
Efbe Tri-Test for Cargobics
The EFBE tri test for cargo bicycles builds on the German standard, but complements the test sequence defined in DIN 79010 by maximum and overload tests. It is thus verified that "the product can withstand singing peak loads on the upper limit of its intended area of application". In addition, it is ensured that "the bike remains safe even if it is burdened beyond its limits and that the safety of drivers or passengers is not endangered if there is an overload".
The TRI test comprises ten different frame load tests. Due to the requirement that a single framework must survive all tests in succession, damage caused by a test is transferred to the other tests. Each test is carried out with massively higher loads - proportionally higher, based on the permissible transport capacity and the geometry of the bicycle.
According to Tern, some of the tests were carried out on frames and fork with loads in his longtail model "GSD", "which were over 300 percent higher than in the European standard EN 14764 for city/trekking bikes".
Both "GSD" and "HSD" had passed the EFBE tri test up to the permissible total weights of 200 or 170 kilograms. According to Tern, it means that they not only meet the German standard for cargo bikes, but exceed.
More information about the EFBE-Tri test at http://efbe.de.
Text: Jo Beckendorff/Tern, photos: tern
Source:https://radmarkt.de/nachrichten/tern-cargobikes-uebertrifft-neue-lastenrad-norm-efbe-tri-test