Thank you for the answer. The reason why I asked it is, maybe the seals can't deal with the salt/slush and leak hence causing the wear. I wish they have given a more definitive answer (I also read in several places that Bosch updated the internals on/after 2016 I don't know if this is true though).Bosh rep didn't give any reason on why the internal gear failed. I even don't know if they opened the unit. I just been told by the bike shop that they never saw a unit with so many km on it.
As for my ride conditions, I ride year-round with lot of rainy days. Roads are salted in the winter, but snow is rare, I live in the Victoria/Gulf islands area.
The majority of STePS bikes we've sold were the oldest model, the E6000. The next largest chunk is the E6100. We've sold very few bikes with the E8000 on it thus far, though that is now starting to change.The Shimano E8000 is a new design where as the BionX is an old design, that's an unfair comparison. I had a BionX DD and it was great, back in the day they were the motor to get. There are millions of Bafang rear hub drives running around the world now that seem pretty reliable. Not taking sides, I actually prefer mid drives but I live in a pretty hilly area.
Yes, STePS E8000 is the most powerful current motor. My comment was about Shimano motors in general, but the only one I specified in my post was the E6000. The overwhelming majority of bikes we've sold came with E6000 or E6100 motors. We've also sold some E5000 and E8000, but the E6x00-series is over 90% of what we've sold from Shimano.Q- What Speed pedelecs (28mph ) come with Shimano Steps 8000 ? That’s the most powerful version of the Steps system right ? I didn’t knew that they are so reliable.
I guess i could google it but it would take some time.
You don't offer any backup/citation for your claim that mid-drives aren't designed for high mileage @ high speed. What has you say that?Mid-drives, however wonderful, are not made for high mileage @ high speeds. They can do high mileage at low speeds but high speeds put a lot of strain on the system.
They are perfect for recreational riding at <20 mph, mountain biking but when you start piling 10,000 miles per year, you will quickly realize the limitations and the needed maintenance. […]
Mid-drives, however wonderful, are not made for high mileage @ high speeds. They can do high mileage at low speeds but high speeds put a lot of strain on the system.
They are perfect for recreational riding at <20 mph, mountain biking but when you start piling 10,000 miles per year, you will quickly realize the limitations and the needed maintenance.
I have 27,000 miles on my Bosch Mid-drive and my average speed is 16-17 mph over all those miles. No motor problems but I do replace chains and brake pads every few thousand miles.
Dapu geared hub might work.
You may also want to check out OHM cycles, as they still have BionX motors and batteries and you might be able to get one for really cheap.
I know of someone who has put 30,000 miles on his BionX D series motor and still working fine...