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Thank you for your words Bikey850, but like I keep saying. Don't be afraid of water! It will ruin the love you have for your bike if you go around all the puddles and try carrying it across streams etc. Apply the grease, don't jet wash the crank and don't wash the bike or store it on it's side...

No need really. The PCB is pretty good at resisting moisture. This is a photo of the motor in the video. Water has been in there for some time. If you zoom in you can see water droplets on everything and water ran out when I removed the cover. No issues with the circuit board though!

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Anyone suffering with a Bosch motor out of warranty can breath a sigh of relief! Circuit boards are very robust and gears seem to be standing the test of time but the bearings do fail from time to time. With the right knowledge and equipment, they are pretty straight forward to change and...

The right hand crank bearing is behind the clutch bearing assembly. If this one fails, you're in trouble! It would need to be pressed out gently but the big issue is, you can't currently buy a replacement. I only have my motor to experiment on, so I don't want to remove it for measuring in case...

Sorry Mike, I do mention in the home page that water is normally the issue and in the "how to" section, not only what to do to prolong the life of the motor bearing, but also the crank bearings! I am working on a video to cover this in a little more depth (even though I am selling bearings and...

Hi All, I am "the bearing guy". I would just like to add a few points to this discussion (without promoting anything). Section 17 of my "how to" guide shows how to extend the life of both the crank and main motor bearings, just for info. As for the Bosch design, I have to agree, it was a little...