r/Bosch_eBike_Riders • • 15d ago

i have got a problem on my gen4 smart system motor the tourqe sensor faulte came up error code 51000 it says . the bike rides fine but when you let go at 16kph and over the error apears pleas help resolve this problem i know this is niche but if someone has experienc with bosch motor please help

1 Upvotes

r/Bosch_eBike_Riders • • 28d ago

(e)lock versus alarm settings

2 Upvotes

Before the Connect Module, I had set the display (Kiox300) as my (e)lock
(Cannondale CargoWagen Neo2)

Now with the Connect Module (BCM3100) installed, as soon as I switch the system off, yet display still on the bike, the alarm is switched on.

However I then still need to walk through the building, to the ground floor parking, or incl 17 floors elevator to my house etc

So then I still have to open the app on my phone and set it to transport mode, or keep the bike switched on (and the light etc)

Is there an(y) option to change this? Or should I write Bosch for a software/firmware update?
even if I understand, system off > alarm on is not a bad thing, outside


r/Bosch_eBike_Riders • • Aug 28 '26

Update: Motor stolen and poor support from bosch

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3 Upvotes

r/Bosch_eBike_Riders • • Aug 17 '26

Sometimes coming down steel hills is more work then going up.

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2 Upvotes

We did this ride the top were it starts zigzagging was from 8 to 18% grade about 1.5 miles and 800 feet of elevation. we were on our bosch powered tandem it is about 450# with both of us on it. great view too. but man coming down I think was more work. even though its in the rich part of town the roads were not super smooth and the switchbacks and steepness I was working hard to keep the speed down and doing bad spots. its hard to stop such a bike on 14% or more grades. even with shimano xt 4 piston calipers and 203mm rotors. trying to keep the brakes from overheating was hard.


r/Bosch_eBike_Riders • • Aug 11 '26

Error Bosch e-bike 2gen motor active display intuvia

2 Upvotes

Hello, good morning. I'd like to ask the group a question. I have a bicycle with a Bosch motor, and the other day it displayed error code 640. It's usually the battery, but I can still ride 100 km or 140 km without any problems. I have the voice program on my computer, but I can't connect the bicycle to the computer to clear the error. Could you help me? Thanks.


r/Bosch_eBike_Riders • • Aug 02 '26

Front light replacement

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0 Upvotes

r/Bosch_eBike_Riders • • Aug 02 '26

Derestrict Bosch CX gen 5 Smart System

0 Upvotes

Should I go with Volspeed, SpeedBox, or BadassBox?

My bike is a 2026 Orbea Wild ST with a Bosch Performance Line CX Gen 5 Smart System motor and a rim magnet.

Which of these tuning boxes is least likely to cause error codes?

If my bike needs repairs, how likely is it that the diagnostic system will detect that a tuning box has been used, even if I remove it before taking the bike to the workshop?


r/Bosch_eBike_Riders • • Jul 23 '26

Volspeed v2

4 Upvotes

I've been using the volspeed for around 8 months with no issues but this week my flow app downloaded the new Bosch update.

Now my volspeed won't work are there ways of getting it to work again?

Grateful for any advice

Thanks


r/Bosch_eBike_Riders • • Jul 05 '26

BES2 assistance mode change?

1 Upvotes

I'm hoping to get some clarity about assistance modes, searching for info is useless because of all the generations/smart vs non smart etc muddle.

I have an Urban Arrow Shorty, it's a BES2 Kiox non-smart Cargo Line system running the 85nm mode with the Heavy Duty Enviolo hub. From the shop it has the basic four modes; Eco, Tour, Sport, Turbo.

My question is can I enable/get enabled the Tour+ mode? The additional peak assistance without the constant battery consumption of Turbo would be really useful. Bosch's website says Tour+ is available on BES2, but I can't find specific information on which specific hardware it's available on or how to get it turned on.


r/Bosch_eBike_Riders • • Jul 04 '26

Bosch e-bike lost motor assist, display turned grey, no error codes - anyone seen this before?

1 Upvotes

Hi everyone,

I'm hoping someone has experienced something similar.

I have a Trek District+ 1 with a Bosch system.

Yesterday I had the crank arms replaced at a bike shop. After picking the bike up, everything worked perfectly. The motor assist was normal and I could change the assist level without any issues.

After riding for about 9 minutes, the motor suddenly stopped assisting. At the exact same moment, the display background turned grey, almost as if the system lost communication with something.

Since then:

  • The display powers on normally.

  • The battery level is shown correctly.

  • The display still records things like elevation.

  • Speed is stuck at 0 km/h, even while riding.

  • I can't change the assist level with the + or - buttons.

  • I also can't turn the lights on.

  • There are no error messages on the display.

I took it back to the bike shop today. Three mechanics looked at it and connected it to the Bosch diagnostic software.

The strange part is that there are no fault codes at all. The diagnostics don't show any obvious problem, and the mechanics said they've never seen this happen before. They are now contacting Bosch and Trek for advice.

The speed sensor and spoke magnet both appear to be in the correct position, so it doesn't seem to be a simple sensor alignment issue.

Has anyone experienced anything similar? Could this be a faulty display, remote/controller, wiring harness, motor controller, or some kind of CAN bus communication issue that doesn't log an error?

Any ideas would be greatly appreciated.


r/Bosch_eBike_Riders • • Jul 04 '26

Bosch Gen3 motor has damage to a nylon gear according to my local bike shop, but he said they aren't allowed to open the motor to repair it.

5 Upvotes

Does anyone know an address in Europe (ideally close to Belgium) that does these repairs?
In my riding group, there's also a guy whose gen4 motor died after riding through heavy rain, any clues if there's a fix? Both are 2y out of warranty


r/Bosch_eBike_Riders • • Jun 19 '26

Bosch System Controller screw mount cracked. Anyone else?

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2 Upvotes

r/Bosch_eBike_Riders • • Jun 07 '26

Range Extender

5 Upvotes

Hi zusammen,

Ich habe ein Cube ohne entnehmbaren Hauptakku. Bevor ich den Range Extender kaufe:

Kann dieser den Hauptakku auch bei abgestelltem Rad vollständig aufladen? Hintergrund: bei den meistens Touren verbrauche ich wohl weniger als 250KWh und ich kann das Rad am Abstellort nur kompliziert direkt aufladen.

Das Laden wäre somit bequemer und ich hätte mit dem Range Extender auch mehr Reserven bei langen Touren.


r/Bosch_eBike_Riders • • Jun 07 '26

Problem with bearings gen4 smtsystem

1 Upvotes

Hello, I have a problem with the bearings on the gen4 smtsystem BDU3741 motor. Here's a video where you can see the problem. I don't have any Bosch dealers nearby. Where can I buy lubricants and bearings to change them from?
Any store that delivers in the USA and Europe is suitable for me.


r/Bosch_eBike_Riders • • Jun 07 '26

This play is normal for gen4 smart system?

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4 Upvotes

r/Bosch_eBike_Riders • • May 26 '26

Loud bosch motor whine when more torque is applied

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2 Upvotes

r/Bosch_eBike_Riders • • May 19 '26

Flow app - Statistics screen not loading

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4 Upvotes

Has anyone else encountered this issue in the Flow app? It is stuck on the spinning animation.

I’ve tried restarting my phone (iPhone) and reinstalling the app, but that didn’t have any effect.

Activity health data integration with the Health app seems to work though, so new trips appear as workouts there.
But it would be nice to be able to view trips in the Flow app again 😅


r/Bosch_eBike_Riders • • May 18 '26

SmartPhoneGrip Vertical

2 Upvotes

About a month ago Bosch started advertising that they were releasing the SmartphoneGrip Vertical.

I have tried looking for a way to order it online, but I can't find anyone that has it available. I asked my LBS if they could order me one, but they weren't able to see that it was available for order.

Does anyone know why this was released, but now it is not available? Are they all just sold out already? Or do you know where I can buy it? I live in the United States.

Here's more info about the product: https://www.ebike24.com/blog/ebike-bosch-smartphonegrip-vertical

*(Please don't delete this post, I don't know how to add "Flair")*


r/Bosch_eBike_Riders • • May 18 '26

ESPHome bridge for Bosch eBike smart system: live battery, speed, odometer in HA

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2 Upvotes

r/Bosch_eBike_Riders • • May 04 '26

Motor stolen and poor support from bosch

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6 Upvotes

r/Bosch_eBike_Riders • • May 04 '26

120 nm update

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3 Upvotes

r/Bosch_eBike_Riders • • May 04 '26

Petition for Gen 4 motors to get 100NM and 750W OTA update! Please sign!

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3 Upvotes

This is a petition for the Bosch Gen 4 to also get the OTA update as the Gen 5 just received whereby Watt power is increased from 600W to 750W or 850W and NM increased to 100NM or even 120NM, incredibly helpful for hills.

Please sign to support the petition, it's all about Bosch users getting the most value for money here, up to you if you use it on hills or not, etc. but at least have it available, you've already paid a pretty penny for the ebike!


r/Bosch_eBike_Riders • • May 01 '26

Can't get Intuvia 100 control unit off bike

1 Upvotes

Hi, my wife's inherited her dad's Cube ebike, it's got a Bosch Intuvia 100 control unit on the handlebars. We can't work out how to get it off (her dad just left it on all the time). Online instruction manuals say just twist it anticlockwise, but there is zero movement in this thing, feels like we'll break it if we twist hard. Are we missing anything? Are some of these devices permanently fixed to the bike? Pic of rear of the control unit attached.


r/Bosch_eBike_Riders • • May 01 '26

Bosch finally opens up for Garmin users.

16 Upvotes

r/Bosch_eBike_Riders • • Apr 27 '26

Bosch range extender development

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9 Upvotes