Derestricting bosch smart system

[manu.w]

Here the « speedFUN » …
Speedfun

 

[ScubaDrunk]

All the talk in my area states that the Bosch Gen 4 motors can handle being derestricted and easily surpass the factory 2 year warranty. Keeping moisture out is a bigger concern than derestriction. I've ran a CX Perf Gen4 motor with old Purion controller derestricted for a year now. 1500 miles in and not one code. Had the bike at 26-36 mph several times for several miles and have never had one single code. Speedbox 3.0.

Brad

Awesome
Thanks for the information bud.

 

[ScubaDrunk]

1. better not, not before someone else dit sacrify himself to test
2. there is a version that enable you to finetune the predefined assistance modes (mine origianally did not had that option)
3. not able to use existing "tuners", Bosh is putting quite some efford in trying to discover "cheating". So using their app (gps) is not a good idea ...
4. as said, if you can get rid of the rim magnet, ie, enabling the traditional reed-switch (bike dealer), you will have much more options

Awesome
Thanks for the information mate.

I updated to the latest supported version 13.13.1 via the app. That unlocked the ability to fine tune the built in modes.

I will go for the speedfun rim magnet version.

 

[BMP]

With the rim magnet? If yes, can you share how speed box is making / generating the magnetic pulse?
Thanks

Mine is the old pre Smart system. The pickup is on the rear brake disc.

Was just wanting to give information about the durability of the Gen 4 motors. I wouldn't worry about needing warranty work done or having a failure caused by derestricting.

Has anyone came up with a solution for the Smart Systems yet?

Brad

 

[ScubaDrunk]

Mine is the old pre Smart system. The pickup is on the rear brake disc.

Was just wanting to give information about the durability of the Gen 4 motors. I wouldn't worry about needing warranty work done or having a failure caused by derestricting.

Has anyone came up with a solution for the Smart Systems yet?

Brad

Looks like Speedfun works with displays BUT doesn't support the connect module or the ABS system.

However, the display will only show a max of 15.5 mph and cannot show real speed above this limit.

Speedfun

 

[cailloup]

Hello eMTB community, I'm new here with a wonderful 524001 error
I have a gen4 cx peformance on 13.13.1 software
I unplugged the derestricting kit (which was working fine before the error, it's from bikespeed.de), put back in place the rim magnet (yes I have the worst possible system to derestrict... discovered that after buying of course). Smartphone not connected.
Then I did the drill hack during 102min, no speed is displayed but average speed and distance are working.
After that I I turned off and on the bike and ... 524001 is still there...

Has some of you make the drill hack clear error with 13.13.1 ? Am I missing something?Would love to avoid ride it without assistance for 90min+? or take it to a service center ..

 

[Hattori-Hanzo]

Hello eMTB community, I'm new here with a wonderful 524001 error
I have a gen4 cx peformance on 13.13.1 software
I unplugged the derestricting kit (which was working fine before the error, it's from bikespeed.de), put back in place the rim magnet (yes I have the worst possible system to derestrict... discovered that after buying of course). Smartphone not connected.
Then I did the drill hack during 102min, no speed is displayed but average speed and distance are working.
After that I I turned off and on the bike and ... 524001 is still there...

Has some on you make the drill hack clear error with 13.13.1 ? Am I missing something?Would love to avoid ride it without assistance for 90min+? or take it to a service shop ..

It could be a faulty speed sensor, either way it's likely you'll need to take the bike to a service centre to clear the error if the 90 min ride or drill hack doesn't work.

 

[cailloup]

I did a 100min ride, turned off, waited 10min, turned on, error is gone
Redconnected the kit, it's working again, unrestricted
So drill hack is not working on my system, there must be some detection of the perfectly constant speed, or inconsistent pedal power compared to wheel speed

 

[manu.w]

How did you do your 100’ ride?
Motor powered on, assisted eco, …?
Thanks

 

[cailloup]

When assistance was on, motor does "fits and start" every 1s or so (faster in turbo, slower in eco) which provides almost no assistance so I keeped assistance off
I did park the bike without pedaling during ~7min, but final trip time on the screen was 1h47