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

 

[Roberto6170]

Hey guys,
looking to buy a bike with the bosch cx 4 Smart system and wanted to know how everyone is going with their unlock chips.

Currently Looks like the Volspeed seems to be the most reliable/least likely to occur detection? Has anyone come across any issues using it consistently at 40kmh + ?

Cheers,

Mines been detected twice now and gone into limp mode...I believe next time is permanent so I'm taking speedbox off .... Good whilst it worked but I don't want to trash a 3k bike....performance line CX gen 4 with smart drive

 

[alpi82]

Hi guys last week I bought eplus Bosch smart system gen 5 with rim magnet, yesterday I tried to install in my new crafty RR 2025 unfortunately there is a problem,the sensor that install near the motor touch in the frame and not possible to put the bolt for fix the motor at the frame.

 

[ScubaDrunk]

So.....

I just installed the VolSpeed and Speedi. Did a quick test and everything appears to be working just fine.

However, I have noticed that the bike speed is limited by the gearing of the drivetrain now.

The realistic maximum speed (flat surface without killing yourself) you can get out of a Shimano XTR 1x12 is 25mph or 40kph.

What are other people finding that have simliar drivetrains????

 

[Peaky Rider]

Mines been detected twice now and gone into limp mode...I believe next time is permanent so I'm taking speedbox off .... Good whilst it worked but I don't want to trash a 3k bike....performance line CX gen 4 with smart drive

What limit do you set the top speed to, 20mph, or above?
I think that the higher you set the deristricted speed to, the bigger the risk of issues.

 

[ScubaDrunk]

What limit do you set the top speed to, 20mph, or above?
I think that the higher you set the deristricted speed to, the bigger the risk of issues.

Exactly right

The general census is, try and keep the speed locked to below 24mph to minimize the risk of getting error codes.

However, Whats the point of running a chip if your drive train is going to be a realistic limiting factor!

You might as well run a Speedi Planetary gear magnet system with the motor limits - In the UK, 15mph limit on the motor with a Speedi Planetary gear magnet system equates to about 23mph.

If your drivetrain is a limiting factor that realistically is only going to give you 25mph, it doesnt make sense to me to run a chip with the added risk of getting errors when the Speedi will give you 23mph without the risk.

 

[Roberto6170]

What limit do you set the top speed to, 20mph, or above?
I think that the higher you set the deristricted speed to, the bigger the risk of issues.

I had mine set to 35km/h tbh I only wanted it to go just above the 15 mph so I good keep up with my mates who are quite strung cyclists