Derestricting bosch smart system

[Sir_Szendi]

The Bosch website states the Performance Line Speed goes 45kmh. I wish we would have simple options to unlock that speed. Its annoying. Cars or motorbikes can go faster than the Speed Limit but the motors are not soft locked to the legal limit of 70mph. I don't know why ebikes motors are treated differently.

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Anyway my chip works well so far so not too much of an issue.

I asked in the shop about the software with a 45km limit. They told me it was a different engine, but if I wanted they could change the engine to the one with a 45km limit. of course the price of a new engine is very high

 

[martyfrommonmouth]

I asked in the shop about the software with a 45km limit. They told me it was a different engine, but if I wanted they could change the engine to the one with a 45km limit. of course the price of a new engine is very high

I'm pretty sure they are all similiar internals - just software differences and form factor. Anyway - I can get 30mph out of mine but I'm pedaling like crazy....

 

[Sir_Szendi]

I'm pretty sure they are all similiar internals - just software differences and form factor. Anyway - I can get 30mph out of mine but I'm pedaling like crazy....

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45 limit motors have a larger gear in the motor, so it's easier to get higher speeds without pedaling like crazy

 

[martyfrommonmouth]

I installed the bikespeed RS last night on my bike.

Delivery was quick from Germany but I had to pay an extra £36 for the import duty. So total price was around £210.

Very simple to install. Could do it in 10 mins now I've done it once. Just need to work out wire routing from the spoke magnet into the motor.

Had a scare when I first turned the bike on as it wouldn't register the motor - but I left it for a bit and after trying various fixes - (starting the bike with a bit of pedal / holding the power and mode buttons for 8 secs) it kicked into life and is operable whilst riding using the combo keys to turn it or off using my mode selector.

Now it just works immediately when I turn the bike on so hopefully won't have to worry about that issue again.

Took it for a ride and it worked perfectly. Need to properly test it later this afternoon but the difference is amazing from stock. The feeling of not riding into treacle at 15mph is so good...

I'll give more feedback later but for now it seems like an excellent solution - especially with the algorithm beating software (lets see if it actually works as promised).

I have got the Bosch Flow app and have tuned the motor in different modes but haven't signed up for an actual account or registered my bike so I'm hopeful I can still use the Flow app functions without causing issues, but if necessary I will just limit network access on the app or just disconnect from any data whilst using it.

I'll try that after using the bike for a while as my modes are all working as I want anyway so theres not really any reason to mess with it for now.

I did a decent ride to the woods and back home again and the chip performed well.

I did however lose power twice on the way home on the road and I think it is due to this function:

Hint for tamper detection

Bosch has introduced a significantly sharper detection of tuning
manipulation in their 4th generation motors. A standard tuning is typically
detected within a very short time, causing the motor to indicate
manipulation and switch to a limp-home mode with reduced motor
power or completely shut down motor assistance.

This state can be reset by riding without tuning. According to Bosch, this
may require up to 90 minutes of driving. Alternatively, the error memory
can be cleared by the bicycle dealer.

We have developed an algorithm to prevent this detection. During the
development of our tunings, we have extensively tested them over
several thousand kilometers to ensure that you can enjoy your pedelec
without any restrictions or error messages. Despite all our efforts, there
remains a small residual risk that under certain circumstances,
manipulation may still be detected. Therefore, please take note of the
following system-specific changes:

With the Bosch Smart System, it is possible that after a long ride at a high
speed, you may enter a critical area where the tuning can be detected. If
our tuning detects this situation, the motor assistance will be limited to
30 km/h. This limitation will be automatically removed as soon as the
technical conditions allow. This limit is additionally indicated on the
bikespeed display by a yellow bar at the top edge.

It was quite jarring. I have emailed the bikespeed guys and asked them if there is anyway to avoid this but I think its unavoidable due to the Bosch Detection algo.

The main thing is I suppose, is that the tuning has not been detected, but worth bearing in mind that this will affect you if you are on a longer ride continously at high speed with this chip.

 

[madxface]

did you completely lose power, or just over 30km/h?