Other Spec can see if derestricted?

bowser

Member
May 23, 2019
109
78
Australia
Had a dealer tell me today that Spec can now see if a bike has been derestricted. Said one of his customers had a motor claim and Spec could tell him the exact date it had the chip plugged in and the warranty claim was to be rejected. Any truth to this or scare mongering?
 

Christox

Member
Aug 12, 2020
85
76
Freiburg/ Germany
Hi !

For old Levo/Kenevo gen1 via third party App Wheel circumference changes it is possible, that there is a logging. Newer Brose versions do not allow that parameter change.

For changes with a speed sensor-chip inline the reed switch sensor it is not possible to detect tuning directly.
If the motor stores the speed profile, speci could see that the bike was always moved below the limiter speed, which is not illegal.

i know from about 5 Motors of people which were running tuning and afterwards warrantied. Technically there is NO REASON why a derestriction tuning should have impact to reliability or warranty.

There are tuning chips available, that simulate speed near the switching limit, and then when the bike stands with TCU on, higher speeds are sent to the motor/Ecu to correct the overall distance and average speed.

Best regards,

Chris
 

2WheelsNot4

E*POWAH Master
Oct 17, 2021
917
711
Scotland
I would wait til out of warranty before 'doctoring' it. Bosch are a funny lot about that type of thing and you dont want to give them any legally justifiable reasons for cancelling the warranty
.
 
Last edited:

RebornRider

Well-known member
May 31, 2019
635
657
NorCal USA
I'm not aware of any current derestrictor methods that write to the TCU. All of the methods I'm aware of manipulate the speed sensor signal before it gets to the TCU. Some slow rotation of the magnet, others adjust the rate of electronic pulses coming from the sensor. There is no way to directly detect either of these. (Edited to say that you can't directly detect that these methods have been used if they are removed from the bike.)

However, I've heard that companies can compare the battery life estimate with the number of miles recorded in the TCU. If the distance traveled is "too small" for the amount of battery capacity lost, they can infer that the speed sensor has been tampered with.
 
Last edited:

Repsol

Member
Dec 25, 2021
189
81
Yorkshire
Take it from me, specialized CAN tell if your bike is chipped at least with the Gen 3 bikes. Any chip that alters the wheel size they can see.
I finally got shut of my troublesome Levo Comp and got a FULL refund but not before they tried implying that the so called reason for it needing 3 motor replacements in 3 month, was due to it been chipped.
Specialized refused to offer any good will and to take up any issues with the store.
I won't go into all the details, my advice to others is stand firm and tell them there talking bollocks. Fitting a derestrior does not void your warranty, nor does it stipulate such in the warranty.
Rider care even told me its OK if i had fitted one.
Their argument was to say that by fitting the derestrictor alters all other firmware parameters therfore causing motor errors and cut out. All I'll say is that after speaking with someone who knows what there talking about, that I was been told a load of bollocks.

If you have any concerns then make sure you buy from a store you can trust.
 

Mikerb

E*POWAH Elite World Champion
May 16, 2019
6,523
5,002
Weymouth
I wrote some time a go that the manufacturers were moving towards ways to detect derestricting, not motivated by potential damage to the motor/firmware but more so the risk they run of further regulation on pedelecs if they are not seen to be taking steps to ensure their bikes comply with the speed cut off regulations both at point of sale and thereafter. Any further regulation has the potential to damage volume of sales and/or significantly increase manufacture costs.
So I believe successive firmware updates most probably have included some detection measures.
I would be more wary of recent innovations like the Bosch smart system and the Specialized new TCU because by far the simplest way excess assisted speed could be detected is with the inclusion of a GPS chip in new hardware. The GPS chip would show the speed and a memory chip recording the battery amperage output would do the job.
 

Mikerb

E*POWAH Elite World Champion
May 16, 2019
6,523
5,002
Weymouth
If the GPS was used to track location maybe but if the only GPS data stored is speed then probably not.
 

mtbbiker

Active member
Sep 15, 2018
111
114
Murrieta
I'm not aware of any current derestrictor methods that write to the TCU. All of the methods I'm aware of manipulate the speed sensor signal before it gets to the TCU. Some slow rotation of the magnet, others adjust the rate of electronic pulses coming from the sensor. There is no way to directly detect either of these. (Edited to say that you can't directly detect that these methods have been used if they are removed from the bike.)

However, I've heard that companies can compare the battery life estimate with the number of miles recorded in the TCU. If the distance traveled is "too small" for the amount of battery capacity lost, they can infer that the speed sensor has been tampered with.
I guess you could say you have more than one battery and that was the used one you bought? I have a Levo and a kenevo and one extra spare battery. On ebike trips, I’ve taken all 3 batteries with me. I’m sure others have more than 1 battery. Just a thought.
 

Planemo

E*POWAH Elite
Mar 12, 2021
605
706
Essex UK
I guess you could say you have more than one battery and that was the used one you bought? I have a Levo and a kenevo and one extra spare battery. On ebike trips, I’ve taken all 3 batteries with me. I’m sure others have more than 1 battery. Just a thought.

I wouldn't be surprised if the system logged the amount of use with each battery. I suspect the battery serial numbers are recorded?
 

RebornRider

Well-known member
May 31, 2019
635
657
NorCal USA
Jeez oh it's like "black ops operations" watch out for strange cars parked outside your house 🤣🤣 big brother is watching eh 😳
I take your point, but OTOH I worked for ESL for many years at the beginning of my career as an electronics design engineer. This was at a time before the public had access to GPS. I saw one proposal to install covert (their word, not mine) antennas in the roofs of cars so they could be tracked. It was a serious proposal and ESL had the tech to make it work. And, FWIW, I didn't just hear about it. I read the proposal.

 

RebornRider

Well-known member
May 31, 2019
635
657
NorCal USA
Wow. ESL seemed to have some shit hot stuff going on. Musta been an awesome job!
It was an interesting place to work because it had the highest of high tech stuff to play with, but the security rules got to be a royal pain. My favorite story is the lie detector test I failed because my respiration rate was "too slow". The guy running the test said that he had a lower limit and I was below that. We ran through the test a second time. I failed that one too, this time because he said my respiration rate was a multiple of my heart beat (3 beats per inhale, I think). He said that's how spies try to beat the test. Then he gave me the best instruction ever!

"Breathe faster, but breathe normally." He didn't see the humor in that guidance!

The other noteworthy thing about ESL is Richard Wade Farley. I joined right after that bit of drama. Richard Farley - Wikipedia
 
Last edited:

ian408

Member
Dec 1, 2020
21
9
Silicon Valley
Im going to wait til im out of warranty before 'doctoring' it. Bosch are a funny lot about that type of thing and i dont want to give them any legally justifiable reasons.
Don't forget, BOSCH is big in vehicle control as well. So they have the methods/technology for detecting all sorts of things. What they cannot detect electronically, they might determine through measurement.
 

F4Flyer

Member
Sep 30, 2020
113
54
Denver
I bet they can check for any changes to the motor, and it would be a good way to reject a warranty claim. In the US, we donlt really need to but many will want to, especially with full-power e-bikes. I sold mine and have a Levo SL now so I certainly have no need for it but if I did, I would wait till the 2-year warranty period was over.
 

RobG

Member
Apr 27, 2022
62
60
Fulltime RV
I have a feeling this may not apply to stuff like bikes and OHVs, but there's the Magnussen-Moss Warranty Act that specifically says a manufacturer CANNOT deny warranty coverage unless they can prove that a part or modification was DIRECTLY responsible for an otherwise covered part's failure. I'll have to look into that. Of course, dealers and mfrs will try to do it, knowing you'll have to take them to court to make them fix it. Still, the law is there.
 

lisalis

New Member
Jul 13, 2024
31
6
Switzerland
I have a feeling this may not apply to stuff like bikes and OHVs, but there's the Magnussen-Moss Warranty Act that specifically says a manufacturer CANNOT deny warranty coverage unless they can prove that a part or modification was DIRECTLY responsible for an otherwise covered part's failure. I'll have to look into that. Of course, dealers and mfrs will try to do it, knowing you'll have to take them to court to make them fix it. Still, the law is there.
Any info ??
I mean specialized would see that maybe the bike was ridden at 50kmh on flat in logs ??
 

lisalis

New Member
Jul 13, 2024
31
6
Switzerland
so i've looked for really long and it's pretty sure specialized can see with gen 3 motors and last updates from 6 months ago that a tuning device was installed so its even more of a no go haha
 

Crow

New Member
Jul 3, 2024
9
4
Ca
How is it illegal if you use it off road? And we are talking about off road bikes here.

But just wait until the warranty is up (it doesn’t last *that* long) and then it’s a non-issue. Specialized isn’t like that other brand that starts with a G.
 

lisalis

New Member
Jul 13, 2024
31
6
Switzerland
How is it illegal if you use it off road? And we are talking about off road bikes here.

But just wait until the warranty is up (it doesn’t last *that* long) and then it’s a non-issue. Specialized isn’t like that other brand that starts with a G.
Nah i still cannot legally use this ebike with motor assistance at more than 25kmh in switzerland i need to register it and it need licenses plates. If the specialized dealer see it was tuned it would be against the TOS of specialized soo. Kinda sucks lol
 

Crow

New Member
Jul 3, 2024
9
4
Ca
Nothing you can do about the first part without moving.

But once it’s out of warranty, it doesn’t matter what the dealer sees, any repairs would be on your dime anyway.
 

EMTB Forums

Since 2018

The World's largest electric mountain bike community.

552K
Messages
27,908
Members
Join Our Community

Latest articles


Top