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Hi @Dewey , I got a bit help. Now I have a automated database on www.pedelecmonitor.com. New are user accounts for up to 4 different bikes. The experiences are reduced and shown on just one page. Everybody can add info to mileage and repairs to his own bike. Example...

And here is my list @Spork where I collect motor failures of all my blog members from mostly Germany, Autria and Switzerland. https://docs.google.com/spreadsheets/d/1ba3EU0zKZ8ppmrOC-yH3x-ecCLiYDX_mM96iHhiWztc/edit#gid=1240553272 Just copy and paste to p.e. Excel to filter and compare. It's a...

I need to comment that, as I am responsible for the data. The info to Brose is not that correct due to the given infos from the biker. Nearly all motor issues are from Gen. 1 Brose system. At the Eurobike in Friedrichshafen I talked to Brose Marketing. They said, Gen. 1 had issues, but the Brose...

Hi @Freewheeler, in my blog Pedelecmonitor I have a biker with an old 2012 Kalkhoff (exact model is unknown). He told me about the poor quality and robustness of the first ebikes with Impulse1 system. He reported a similar failure. The root cause was a very stiff cable connection between the...

The Purion was damaged, the bike shop tried to change batteries for 2 -3 times. Not successful. This issue happened during the warranty period, my wife got a new one installed. Regular price was arround 100 Euro, if it would be no warranty issue.

Hi @Rune , in my point of view the motors with the classic Bosch egg optic are running more reliable than those with a changed motor cover. The other thing is, customers with cargo or trekking applications have a significant lower no. of failures. If you rige your bike in muddy tracks, don't...

Thanks @JayVee -- white means the motor was changed although it was still working e.g. due to optical reasons or when the rootcause of a failure was not found and the customer can keep the new motor.

Here some data from my project pedelecmonitor, where biker can share their mileage and failures. Average monthly mileage of all participating Stromer biker (in kilometers) https://pedelecmonitor.files.wordpress.com/2018/11/2018-10-31_kilometer_pro_monat_cyno.png...

Over 1.8 mio miles or 3.0 mio kilometers real biker experiences! In March just 4 new motor issues were reported - Bafang BBS01 Impulse2.0 Impulse2.2. All motor issues are summarized in a google table with runtime date failure describtion if available Whats new? A rising...

I think it was a very good decision @Thomas Gårdelöv ! Although the motor issues were really anoying, the brilliant service at the end keeps the image of Kalkhoff on a high level. Which bike with which motor system will be your next one?

Over 1.6 mio miles or 2.6 mio kilometers are the base for the JANUARY-charts. This month just 4 new motor and one battery issues were reported - Bosch Active Bosch Performance Yamaha PW and Impulse2.0. All motor issues are now summarized in a google table with runtime date failure...

Over 1.6 mio miles or 2.5 mio kilometers are the base for the DECEMBER-statistics. This month 35 new motor issues were reported - Bosch CX Bosch Classic Yamaha PW and a lot Impulse1.0 and 2.0 motors. All motor issues are now summarized in a google table with runtime date failure...

Over 1.3 mio miles or 2.2 mio kilometers are the base for the NOVEMBER-statistics. This month just 7 new motor issues were reported - some Bosch mids and some hub drives. All motor issues are now summarized in a google table with runtime date failure describtion if available Last month...

Over 1,100,000 miles or 1,800,000 kilometers are the base for the OCTOBER-statistics. 23 new motor issues were reported :eek:. The majority of the failures occured at the Impulse-system. ***** NOW IN ENGLISH - www.ebikemonitor.de ***** All motor issues are now summarized in a google table...

Thank you @alasdair for your great review! I'm sure for some biker 5.000miles is a real long time - so thanks for sharing your long term use experience. https://pedelecmonitor.wordpress.com/2017/10/27/alasdairs-giant-quick-e-us-yamaha-pw/

This is my problem too! So I started to ask long distance commuters (10.000km+) and heavy bike users (Quick&Dirty). @Sonoboy gave the hint - Pedelecmonitor (mostly german) How about creating an english based platform / blog? how long owned how many miles / kilometers what motor / battery...

Topic - Purion shows "Change Display Battery" and after changing the Battery is dead within a few hours I went to the bike shop last Friday. They installed a new Purion for about 100 Euro. As we had some difficulties with the frame size of the bike and the child seating systems the shop...

I agree! Ok, in Germany I heared that the warranty is longer ... but 2 years is also good. And that is the thing, all other manufacturers won't give another 2 years warranty on the changed drive unit. So if there is still a problem, you can be sure to get the motor replaced for free. Motor...

It is a good mixture, some started to share their mileage before they had problems and some started with their 1st motor damage. An alternative is looking in www.pedelecs.co.uk. Currently I'm in a discussion with an EVO driver. He likes the bike a lot but there is a loss of power. The root...

I can't see which Kalkhoff with which motor you like. Can you give us more details? If it is an Impulse2.0, the the 2017 series is a lot more reliable. Take a look on the motor ID, it should be bigger than 620.000 and the manufaction date should be 2017! But there is a 3 year warranty on that...