Please like and Subscribe! My experience with electric bike motor from Shimano Steps. Worn out after 12000 km. 7500 miles. Sorry i don't use the right word for Worn sorry! Wired = Worn
Thanks for putting this video up. This also happened to my du-e6001 motor. The problem is a bit more complicated than meets the eye. The bearing in the middle of the black plastic cog is a one way clutch bearing (NSK FCB-12), it only allows rotation in one direction. When the motor engages, it's pinion drives this black plastic cog which in turns locks the bearing and this grips the cog's axle shaft which drives the main chainring cog. This means the bearing is transferring power from the cog to it's axle shaft. The bearing is somehow tightly embedded into the cog, I was not able to remove it even after hammering the bearing. I'm not sure how it is seated into the cog. So 3D printing or even milling a new cog might not work as the bearing will not be seated tight enough inside the new cog. I'm currently trying to repair the stripped teeth using something like JB weld, but not sure if it will be strong enough.
Also had this engine that died last summer after 6.000 km. No tuning of any kind though. And it also cost me a new engine. A shame there’s no spares, even unoriginal ones.
I had the feeling that it did not matter that I had tun it when your engine without tuning has already worn up at only 6000 km. Yes, and it's not OK that you can not get spare parts and just must throw it out :-(
12k on a tuned Shimano is really good. My e7000 non-tuned broke its plastic cog near the shaft after just 800km. Luckily a shop rebuilt it on a lathe for 100euro
Shimano warranty technician here, if it's only done 800km why did'nt you just get the shop to do a warranty exchange and if it was out of warranty and you are the original owner we can do up to a 50 % discount on a new motor?
@@bertieballs 1. This is what I did-I went to the official Shimano repait shop nearby and even asked if some part of the new motor would be covere by the warranty , but wasn't offered any discount for the replacement motor 2. If they had replaced it with the same motor I'd still expect to have the same problem after another 800km, as the cog would snap the same way eventually. It just has weak spot near its axis by design 3. 100Euro for rebuilding it was definitely cheaper than a 50% off-priced motor
Jeg købte en helt ny motor i Kina for 2500 kr. og må acceptere at den nok kun holder de her 12000 km. Top farten er næsten 50 km/t. men nu kører jeg kun norm speed med high i håb om den holder længere.
Just had mine replaced after 26000 km, but lots of them on own steam. Did ask for the old motor to be given to me And now I see this video! The repair by a bikeshop was 995 euro including work Do you have a recording of the sound it made?
@@MichaelKroese 98 eur isntallation work, the rest just the Du-6002 yeah, should have ordered one myself elsewhere and save a few euro’s o well hinsight
Of course when you tune it , it will be worn out faster. My engine makes now 30.000km without any problem. But I had to change once the Shimano ALFINE Di2 SG-S7051 in the rear wheel
You can use photogrammetry to scan the original cog, by taking lots of pictures from different corners. Then let a computer program like 3DF Zephyr make a 3d model of those pictures. That model will not be accurate, but with 3d Blender one can make a 3d model that will "fit" the 3d scanned model. Then you can print a new cog.
Today the wheel inside of my motor is broken also. Badassbox. Like you i have driven it for 2,5 years but more than 12000 km. You've got some replacement?
I suppose that must be the price you pay for thrashing the motor outside of its design capabilities. I do think it a shame that you can't get a new cog, though.
Danke you must ride the hell out of that thing. My wife has the same bike. You opened my eye to the lack of options to upgrade.How did you defeat the 28kph manadate? Thank you for the update! 12,000,000 meters. Hardly I think anything to complain about.
Here's a list of different type of materials www.cmac.com.au/blog/top-10-materials-used-industrial-3d-printing You can have it made in strong materials from www.shapeways.com if you don't have access to a 3d printer.
It's not a maximum speed for the bike. It's the maximum speed that the motor will give assistance for. That's the price you pay for not having to have a licence.
Its no joke it by law here. Because you should not run 45 between other bycicles going 16kmh. You are a danger for them! Buy a Kawasaki H3 when you want to be fast!
If you dont like the reliability of the tampered shimano, you can always buy a bosch motor, have worse reliability straight out of the box. Sounds like a good deal 😂
Thanks for the tip :-) I have bought the same engine again as I can not mount another on the bike. I hope at some point I can get a new gear printed :-)
Fuc*ing hell. How is possible a plastic weel inside the motor. My shimano bike is with motoe Shimano E6100 is it also with plastic parts hahahahahahaha but makes noise I mean norma as electric engine makes it. Thank you for the video sir. Could you help me to downgrade my firmware from 4.7.7 to 4.5.0 please
@@MichaelKroese 3D printing is inadviseable for this kind of high performance part, but I imagine that if someone took the time to model the gear, then it would be easy to get it milled from ABS. Alternatively, if you want to use 3D printing, you would be able to use the print to create a mold, into which you would pour a suitable resin (FEPshop - Functional Resin seems like a valid choice, but I only skimmed). Then you would have gears that need some minimal manual polishing before being ready to be slotted in!
