pedelecmonitor - mileage and repairs statistics

shep

Pedelecer
May 3, 2011
84
34
Alex

What a brilliant idea, looking at your statistics for the Bosch CX motor helped me make up my mind to buy a Cube Reaction Hybrid HPA with the Bosch CX Motor. We also have 2 X Kalkhoff Agattu with the Panasonic 26v Motors good to see that they are also very reliable up to really high mileages like 30,000 to 40,000 Km,s great resource you provide
 
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georgehenry

Esteemed Pedelecer
Nov 7, 2015
1,447
1,264
Surrey
It's best to have all the facts, then you can make the correct decision.
I agree with both of you!

If you have a two year guarantee on the motor it is very reassuring if you can see that the company in question will replace the motor with no quibbles if you have a problem within that time.

My Yamaha motor in my crank drive sDuro developed play in what on a normal bike would be the bottom bracket and I could tell that there was a good couple of millimeters. By laterally pushing and pulling the crank arm opposite the chain ring I could see that the chain ring moved more than it should do.

The shop I bought it from (ebike shop Farnham) replaced the motor just after two years of ownership with no quibbles very quickly with no charge. The motor had covered 6000 miles when the play became noticeable.

I also own an older 2011 Oxygen Emate City that Andrew at Oxygen replaced the motor wheel for me just inside the two year guarantee and that second motor is still working well.

However it is also very useful to have empirical data about any given motor and how reliable they are statistically. How many are likely to fail and how far can you expect them to go on average before they fail or require some serious maintenance or replacement.

I am sure that the bearing that developed play in my Yamaha motor could have been replaced but it was obviously easier to swap out the motor and I was very happy to get a new motor very quickly with no quibbles just after two years of ownership.

All crank drive motors must have some vulnerability in the main bearing that handles the force of the riders effort through the pedal arms. This vulnerability will be effected by the quality (needle roller bearings etc), size and design of that bearing and the power that it has to handle. Weight of rider!

Personally I would prefer the strongest highest quality bearing possible to increase the lifespan of the motor even if that meant a slight weight penalty. However I use my bike to commute and do a relatively high annual milage and someone else might be happy to trade some reliability for less weight and more power.

Impulse owners might just want the bloody thing not to break down! Though we do not have any real statistics as to their actual reliability.
 
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Trevormonty

Esteemed Pedelecer
Jul 18, 2016
1,135
564
17
NZ
Shop replaced my 6month 1900km CX, said it was noiser than expected and hard to turn by hand. Sounds like bearing or gearbox issue. The issue may have been there from day one as new dive does seem quieter.
 
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redalexx

Pedelecer
Nearly 1.400.000 kilometers or 860,000 miles are the base for the AUGUST-statistics.

***
several new failures were mailed in August, :eek:. They occured at Albers Neodrive, Brose, Bosch and Impulse.
***

Jump to english start-page! https://pedelecmonitor.wordpress.com/mittelmotoren/

Directlinks zu Bosch, Yamaha and Impulse:
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/bosch-mittelmotoren/
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/yamaha-mittelmotoren/
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/impulse/



All motor failures / damages are summarized in an own blog-article (just german, but google translator on the top right implemented)

Motor failures - Click
 

redalexx

Pedelecer
Over 1,000,000 miles or 1,600,000 kilometers are the base for the SEPTEMBER-statistics.

***
several new failures were mailed in September and I got a lot mileage updates, :eek:. The failures occured at AEG Comfort Drive, Brose, Bosch, MAC and Impulse.
***

Jump to english start-page! https://pedelecmonitor.wordpress.com/mittelmotoren/

Directlinks zu Bosch, Yamaha and Impulse:
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/bosch-mittelmotoren/
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/yamaha-mittelmotoren/
https://pedelecmonitor.wordpress.com/mittelmotoren/mittelmotoren-2/impulse/



Additional a distribution, how ebiker are using their bikes - median (average) miles / kilometers per month



All motor failures / damages are summarized in an own blog-article (just german, but google translator on the top right implemented)

Motor failures - Click
 

redalexx

Pedelecer
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 with
  • runtime
  • date
  • failure describtion if available

 
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redalexx

Pedelecer
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 there were a lot of Stromer (St1 and ST2) biker that shared their mileage - very impressive data!




jump to english blog - www.ebikemonitor.de
or to german blog - www.pedelecmonitor.de
 
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redalexx

Pedelecer
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 describtion if available





jump to english blog - www.ebikemonitor.de
or to german blog - www.pedelecmonitor.de
 

redalexx

Pedelecer
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 describtion if available



(It's January - although in the chart is written February - sorry)



jump to english blog - www.ebikemonitor.de
or to german blog - www.pedelecmonitor.de
 

redalexx

Pedelecer
Over 1.8 mio miles or 3.0 mio kilometers real biker experience!

Im March just 4 new motor issues were reported -
  • afang BBS01
  • Impulse2.0
  • Impulse2.2
All motor issues are summarized in a google table with
  • runtime
  • date
  • failure describtion if available



A rising number of Stromer biker are sharing their experiences:


jump to english blog - www.ebikemonitor.de
or to german blog - www.pedelecmonitor.de
 

anotherkiwi

Esteemed Pedelecer
Jan 26, 2015
7,845
5,786
The European Union
Hey redalexx!

I tried adding the Translate My Sheet addon to Sheets so that I could translate the German text but it isn't available in the menu is there an option when you publish to allow addons?

Cheers for you great work