Mountain Bike Reviews Forum banner
1 - 20 of 24 Posts

·
Registered
Joined
·
414 Posts
Discussion Starter · #1 ·
Is there a list of issues or no-issues that people have had with the Shimano package? I would like to see real world comparison with Shimano vs the Specialized motor and battery. Reliability and the ability to upgrade without huge mods are important to me.
It seems there are less issues with the Shimano products vs others.
 

·
Registered
Joined
·
2,826 Posts
Is there a list of issues or no-issues that people have had with the Shimano package? I would like to see real world comparison with Shimano vs the Specialized motor and battery. Reliability and the ability to upgrade without huge mods are important to me.
It seems there are less issues with the Shimano products vs others.
Everyone I know with a Shimano system has had it cut out with error codes at least occasionally. If you look around on here, some people experience this almost every ride. After they cutout, they can be re-started and will go again for some length of time, hours, or days without seeing the issue again. Unfortunately, they often cut out on a steep climb, which can really suck.

Several people on here have reported motor failures with Levos. Search and you will find them.

The Bosch and Yamaha systems seem to be more solid. I personally have put thousands of tough trail miles on my two Bosch powered eMTBs and have had *zero* issues. There are design flaws, IMHO, but as far as reliability they are rock solid. The biggest issue I've seen reported with Bosch that could be tagged as a reliability issue is that the Intuvia display, the large one that mounts in the center of the handlebars, is subject to damage in crashes, and if the mount is damaged, the removable controller display will become loose. When this happens, if you hit a bump, the display loses electrical contact with the mount and the motor shuts off. This is cured by either a new controller display or a new mount, or by just replacing the Intuvia with the later Purion model that lives on the left side of the handlebar, near the grip and which is not removable.

Same with Yamaha as far as I have heard, no one has issues with those, they just work.

The Shimano is Gen 1 and will probably get better, but no one knows when they will be updated. Bosch is just now coming out with the fourth iteration of their system, Yamaha is on Gen 3, Levo is on Gen 2.
 

·
E-Moderator
Joined
·
1,021 Posts
I’ve only been in the ebike world for about 4 months, but in those 4 months I’ve logged just over 1,600 hard miles. I’ve got the Intense Tazer Shimano Steps 8000 system with 504wh battery. Zero problems so far, with my fingers crossed! Love this bike!
 

·
Registered
Joined
·
414 Posts
Discussion Starter · #5 ·
Thats a great testimony. I am not bagging the Specialized product as they have the most out there and will have the most returns but it seems like there are a lot of motor replacements, even on the new 2019.
 

·
E-Moderator
Joined
·
1,021 Posts
How do I find what manufacturer uses the Bosch?
I'd imagine you would have to visit each manufacturers website (Brose, Yamaha, Bosch, Shimano, etc...). Keep in mind Bosch just launched a new motor, so most of the reviews you'll be seeing will be on that old design. Most new bikes will be sporting this new Bosch motor.
 

·
Registered
Joined
·
2,826 Posts
How do I find what manufacturer uses the Bosch?
Many manufacturers use multiple systems, but the players in the US with at least some Bosch eMTBs are Haibike, Trek, Cannondale, Bulls, iZip, Kona, Moustache. Mondraker used to make eMTB with Bosch but they shifted to Shimano.

Here is a list of ebike manufacturers that use Bosch, not all are available in the US, and not all make eMTBS:

https://www.bosch-ebike.com/us/service/brands/ebike-brands/

As pointed out, the new 2020 Bosch Gen4 motors should be arriving soon. Trek has not revealed their 2020 eMTB line yet, but I would think they are so big that they'll be one of the first that have them. The new Bosch motors are 2 pounds lighter without giving up any power. It remains to be seen if they will be as rock solid as the current Performance CX eMTB motors.
 

·
Registered
Joined
·
89 Posts
I have. been riding the shimano 8000 on a canyon spectral: on for three monthes and 600. km and am very satisfyed with its overall performance, the tunning of the assistance and range are all I could ever expect for a first ebike experience.
 

·
Registered
Joined
·
167 Posts
I have the Yamaha motor on my 2017 Haibike mountain bike. I have logged a bit over 800 miles on it. Never had any problems. Been very stable and reliable. Love it!

I also have a 2018 cargo/utility e-bike with the Shimano 6000. Occasionally, I get an error code when turning it on. Solution is to power off/on again and it goes away. It has never given an error code in the middle of a ride.

Needless to say, the e-MTB is pushed much harder while mountain biking than the cargo bike.
 

·
Registered
Joined
·
690 Posts
Where a lot of the issues occur is when manufactures use the Shimano motor but then their own battery. The YT Decoy has proven to have intermittent cut-outs due to compatibility between the motor and a battery. As mentioned by MTBBIKER models like the Intense Tazer use a complete Shimano system so there is 100% compatibility. I did have an issue with a Shimano battery where after 3 uses it just refused to take a charge. I got in touch with Shimano and they had a new battery to my door in two days.
 

·
Registered
Joined
·
2,248 Posts
Is there a list of issues or no-issues that people have had with the Shimano package? I would like to see real world comparison with Shimano vs the Specialized motor and battery. Reliability and the ability to upgrade without huge mods are important to me.
It seems there are less issues with the Shimano products vs others.
Read some more.
Shimano is the name of the first motor.
At the second it is shishimano
At the third you do not want to know
There are more than 2 manufacturers.
 

·
Registered
Joined
·
2,826 Posts
Where a lot of the issues occur is when manufactures use the Shimano motor but then their own battery. The YT Decoy has proven to have intermittent cut-outs due to compatibility between the motor and a battery. As mentioned by MTBBIKER models like the Intense Tazer use a complete Shimano system so there is 100% compatibility. I did have an issue with a Shimano battery where after 3 uses it just refused to take a charge. I got in touch with Shimano and they had a new battery to my door in two days.
Interesting observation, but Pivot Shuttles have been known to have issues as well, and they use a genuine Shimano battery.

It would be interesting to see if Fezzari or Commencal, who also use Shimano batteries, have been seeing issues. Focus had their own battery with a Shimano motor, but they appear to have pulled out of the US market. There were a few people on here who had them though. Any Focus or Fezzari or Commencal owners want to weigh in?
 

·
Registered
Joined
·
657 Posts
I have a Decoy with shimano motor and zero problems. The most common shimano error is W013..that's when you turn it on while feet on cranks. Shimano does not want you to lose control by not being ready for that massive torque I guess
 

·
Registered
Joined
·
70 Posts
The wife and I have 2 commencals w shimano. I since last fall, I new this spring. Quite a bit of hard riding on them. No failures, never cuts out when riding.

Sent from my SM-G970U using Tapatalk
 

·
Registered
Joined
·
1,199 Posts
In short, the batteries degrade MUCH more rapidly than Shimano claims (supposedly the batteries will be at 60% capacity after 1000 charge cycles), but real world data suggests much worse durability.

Also, Shimano software is sketchy at best. Can be a real gamble updating firmware over bluetooth, for example, and most new versions of Shimano's mobile apps are buggy. I would recommend getting an SM-PCE02 interface and updating your bike from a PC, plus you'll get better diagnostic and monitoring capabilities.
 
1 - 20 of 24 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top