• Warning!!

    Riding a tuned or deristricted EMTB is not a trivial offence and can have serious legal consequences. Also, many manufacturers can detect the use of a tuning device or deristricting method and may decline a repair under warranty if it was modified from the intended original specification. Deristricting EMTB's can also add increased loads for motors and batteries. Riding above the local law limit may reclassify the bike as a low-powered bike, requiring insurance, registration and a number plate.

    Be aware of your local country laws. Many laws prohibit use of modified EMTB's. It is your responsibility to check local laws. Ignoring it, has potential implications to trail access, and risk of prosecution in the event of an accident.

    UK Pedelec Law

    Worldwide Laws

    We advise members great caution. EMTB Forums accepts no liability for any content or advice given here. 

Random Levo Gen4 Derestriction chat

T

tubylas

Member
Joined
Jun 25, 2022
Messages
40
Reaction score
16
Location
Poland
Hi
Does anyone heard about derestriction of speed limit in Turbo Levo Gen 4?
Except USA users off course.
Thanks
 
Last edited:
⚡ EMTB Pro Go Pro — exclusive discounts & ad-free Peaty's 25% off & more · Ad-free browsing · Pro badge See the deals →
How does the pear tune work? Does it just trick the bike into thinking it's going slower than it is?
 
For more informations, see this website ;)

www.twowheelsempire.com

Peartune MSO 4.0 For Brose Specialized Turbo Levo 2.0 | 2.1 | 2.2 Motors

PearTune 4.0 Tuning Kit is now available in a version for Brose Specialized drive systems (model year 2020-2021/type 2.0 | 2.1 | 2.2) PearTune Brose Specialized is revolutionary tuning kits which completely remove 16mph / 25kph speed limit of your electric bike. This enables you to ride much...
www.twowheelsempire.com www.twowheelsempire.com
 
tubylas said:
Have you tried their products?
Click to expand...
Hi there, just mounted a couple of days ago. One big issue is the speed sensor connectors, poor and with risk of disengadge almost every time. Seems also that water and dirt can spread inside. In any case it works seems to work well. It's funny use turbo and pedal till 50 km/h in no time. During these days i will test in in a few ride. I'm also curious if on microtune mode the sistem will be working good
 
ruppia said:
Hi there, just mounted a couple of days ago. One big issue is the speed sensor connectors, poor and with risk of disengadge almost every time. Seems also that water and dirt can spread inside. In any case it works seems to work well. It's funny use turbo and pedal till 50 km/h in no time. During these days i will test in in a few ride. I'm also curious if on microtune mode the sistem will be working good
Click to expand...
Hi I bought this peartune but speed sensor conectors are bad it starts to disconect on downhill so I cut orginal conector and connect to peartune works perfectly!!!
 
tubylas said:
Hi I bought this peartune but speed sensor conectors are bad it starts to disconect on downhill so I cut orginal conector and connect to peartune works perfectly!!!
Click to expand...
Can you post a Photo ? It's a T connector, so one side onto motor and one side onto connetor itself, so i cannot understand how can you do that. Maybe you cutted and on the sensors side you weld the two wires ?
 
ruppia said:
Can you post a Photo ? It's a T connector, so one side onto motor and one side onto connetor itself, so i cannot understand how can you do that. Maybe you cutted and on the sensors side you weld the two wires ?
Click to expand...
Sorry I don't have a photo (should done it when connecting cables).
Can you please tell me do you sometimes have problem with the hard AXS wire after connecting Peartune I mean the rear sram AXS derailleur doesn't have a power from engine to work?
 
No, never. What i did is buy a wheel sensor cable, cut the connector and weld it on Peartune. Now it's quite perfect. I went on a Bike Park on sunday and have great fun. Never had issue on AXS
 
ruppia said:
Hi there, just mounted a couple of days ago. One big issue is the speed sensor connectors, poor and with risk of disengadge almost every time. Seems also that water and dirt can spread inside. In any case it works seems to work well. It's funny use turbo and pedal till 50 km/h in no time. During these days i will test in in a few ride. I'm also curious if on microtune mode the sistem will be working good
Click to expand...

ruppia said:
Hi there, just mounted a couple of days ago. One big issue is the speed sensor connectors, poor and with risk of disengadge almost every time. Seems also that water and dirt can spread inside. In any case it works seems to work well. It's funny use turbo and pedal till 50 km/h in no time. During these days i will test in in a few ride. I'm also curious if on microtune mode the sistem will be working good
Click to expand...
Hi, I installed it and received an error message about the speed sensor.
Have you had any difficulty inserting the connector into the motor?
 
IMG_7053.jpeg
IMG_7053.jpeg

No disconnect issues with Limitless devices cable and fully seals both ends unlike the peartune 🫣
 
I've had a PLANET3 on my Gen4 Comp Carbon since May 2025 and it's perfect for my use case. Speed limit is up to 39 km/h and you do lose the first three gears on the cassette for climbing, but I still haven't found myself in a situation where I miss those long-term. Mind you, if you need first gear for a short steep climb it still works as it'll cut the power only after about 25 seconds of continuous pedaling and I've never needed it for longer than that. The dev also wrote a very transparent post here on the forum which prompted me to purchase in the first place. Looking at photos and experience of others with Peartune and having to hotglue live wires into the motor connectors, the mech unit on my rear wheel was the simplest of installs and done in less than 10 minutes.
 
scipy said:
I've had a PLANET3 on my Gen4 Comp Carbon since May 2025 and it's perfect for my use case. Speed limit is up to 39 km/h and you do lose the first three gears on the cassette for climbing, but I still haven't found myself in a situation where I miss those long-term. Mind you, if you need first gear for a short steep climb it still works as it'll cut the power only after about 25 seconds of continuous pedaling and I've never needed it for longer than that. The dev also wrote a very transparent post here on the forum which prompted me to purchase in the first place. Looking at photos and experience of others with Peartune and having to hotglue live wires into the motor connectors, the mech unit on my rear wheel was the simplest of installs and done in less than 10 minutes.
Click to expand...
Depends on the terrain you ride. I need all the gears working👌🏻
 
Hey @DylanJM, unfortunately I don't have anything new to report. I've got the PLANET3-E working with the Levo Gen4 (but with older Gen3 connectors spliced into the original wiring) and then I had to bench it due to a couple of reasons. Main one is that my "temporary" electronics guy kinda started "losing interest" and it's a bit of a mission impossible finding a knowledgeable replacement locally. So, even if I solve the mechanics of mold production I don't really have a reliable person to take care of any new things that might pop up in regards to electronics and I don't want to go down the route of Levociraptor and simply take people's money without any regard for the consequences. Other reason is of a more personal nature and that is - I'm not really motivated any more. The whole bike industry has taken a bit of a turn for the worse, and the derestriction community as such is dominated by morally bankrupt individuals that have no decency and won't stop at nothing to make a buck. If I was any younger or more motivated, I'd try and do something about this but I'm more of the opinion that I should simply stay away from things that disgust me and do something else with my time. I'll continue to support the products that I've sold basically forever, but barring any miracles - any new developments are going to be few and far between.
 
DuncanDoughnuts said:
Why is this necessary with class 3 mode on the levo 4?
Just curious?
Click to expand...
I believe Class 3 mode on the Levo Gen4 is a) only available for US region and b) even with 28 mph limit the power available is only 50% of the total output the motor is capable of. So, you've still got most of the world that sticks to EU/UK limits of 25 km/h (15.5 mph) instead of the regular 20 mph limit for the US and then even the US customers can benefit from at least a 50% bump in speed limit if that means they can keep the motor output high. My personal 2 most important uses for a derestricted ebike are: ride on flat asphalt through the city to get to the trail head and being able to throw in pedal strokes at any speed when descending knowing the power is going to be there.
 
ruppia said:
Hi there, just mounted a couple of days ago. One big issue is the speed sensor connectors, poor and with risk of disengadge almost every time. Seems also that water and dirt can spread inside. In any case it works seems to work well. It's funny use turbo and pedal till 50 km/h in no time. During these days i will test in in a few ride. I'm also curious if on microtune mode the sistem will be working good
Click to expand...
Has anyone tried the PearTune MSO 4.0 for Specialized 3.1 Gen4 tuning with the new firmware update that increases power to 810W/850W?
If so, what is your experience? Do I need to disconnect Peartune tuning when updating the firmware?

WhatsApp Image 2026-02-09 at 16.32.01.webp
 
I'd suggest removing it. You simply never know with a new update. Almost all the chips are (or should be) made to simply forward any CAN communication that are not the messages of interest (such as rear wheel speed). However, a manufacturer can implement "handshake" messages that might stand out and the chip wouldn't know what to do with them unless it was programmed specifically to do so. The only time I'd leave it in is if you get someone from PearTune to say "We've tested it with this specific FW update and it's perfectly safe." For example, in my chip development I've tested it with both OTA (over the air) updates via Bluetooth/app and with USB & Turbo Studio. I've gone so far to plug in the chip into a brand new bike that's still in the box and has a yellow sticker under the TCU and the very limited initial firmware (locked to 10 km/h) just to see if everything will go well - and it always did. However, I still prefer to be the first one to try any new update on my personal bikes and only then tell customers that it's safe to do the same.

Problem here might be that this update is available in the parts of the world that are not where the developers are and then it's a bit of a waiting game until these new firmwares reach our coasts. I know this new power level firmware has become available to the US market weeks ago and only now seems to be coming to the EU.

Ask PearTune directly, but if you're wanting to update right away - remove the chip, do the update and then put it back. Worst case scenario you get an error message or the bike won't turn on, but you won't brick your bike permanently. The chip can always be updated later.
 
Alex @ PLANET3.bike said:
Sugeriría eliminarlo. Simplemente nunca se sabe con una nueva actualización. Casi todos los chips están (o deberían estar) diseñados para simplemente reenviar cualquier comunicación CAN que no sean mensajes de interés (como la velocidad de las ruedas traseras). Sin embargo, un fabricante puede implementar mensajes de "apretón de manos" que podrían destacarse y el chip no sabría qué hacer con ellos a menos que estuviera programado específicamente para hacerlo. La única vez que lo dejaría es si alguien de PearTune dijera "Lo hemos probado con esta actualización específica de FW y es perfectamente seguro" Por ejemplo, en el desarrollo de mi chip lo probé con actualizaciones OTA (por aire) a través de Bluetooth/aplicación y con USB y Turbo Studio. He llegado muy lejos para conectar el chip a una bicicleta nuevaTodavía está en la caja y tiene una pegatina amarilla debajo del TCU y el firmware inicial muy limitado (bloqueado a 10 km/h) solo para ver si todo irá bien, y siempre fue así. Sin embargo, sigo prefiriendo ser el primero en probar cualquier nueva actualización en mis bicicletas personales y solo entonces decirles a los clientes que es seguro hacer lo mismo.

El problema aquí podría ser que esta actualización esté disponible en partes del mundo donde no están los desarrolladores y luego es un juego de espera hasta que estos nuevos firmwares lleguen a nuestras costas. Sé que este nuevo firmware de nivel de potencia estuvo disponible en el mercado estadounidense hace semanas y recién ahora parece estar llegando a la UE.

Pregúntele directamente a PearTune, pero si desea actualizar de inmediato, elimine el chip, realice la actualización y luego vuelva a colocarlo. En el peor de los casos, recibirás un mensaje de error o la bicicleta no se encenderá, pero no bloquearás tu bicicleta de forma permanente. El chip siempre se puede actualizar más tarde.
Click to expand...
 
Alex @ PLANET3.bike said:
I'd suggest removing it. You simply never know with a new update. Almost all the chips are (or should be) made to simply forward any CAN communication that are not the messages of interest (such as rear wheel speed). However, a manufacturer can implement "handshake" messages that might stand out and the chip wouldn't know what to do with them unless it was programmed specifically to do so. The only time I'd leave it in is if you get someone from PearTune to say "We've tested it with this specific FW update and it's perfectly safe." For example, in my chip development I've tested it with both OTA (over the air) updates via Bluetooth/app and with USB & Turbo Studio. I've gone so far to plug in the chip into a brand new bike that's still in the box and has a yellow sticker under the TCU and the very limited initial firmware (locked to 10 km/h) just to see if everything will go well - and it always did. However, I still prefer to be the first one to try any new update on my personal bikes and only then tell customers that it's safe to do the same.

Problem here might be that this update is available in the parts of the world that are not where the developers are and then it's a bit of a waiting game until these new firmwares reach our coasts. I know this new power level firmware has become available to the US market weeks ago and only now seems to be coming to the EU.

Ask PearTune directly, but if you're wanting to update right away - remove the chip, do the update and then put it back. Worst case scenario you get an error message or the bike won't turn on, but you won't brick your bike permanently. The chip can always be updated later.
Click to expand...
I've already written to PearTune, but they haven't responded yet. If they do, I'll post their response.
 
You must log in or register to reply here.
Keep reading
    Browse all

    Similar Threads

    Community Stats

    Since 2018
    668K
    Messages
    40,731
    Members
    Join 30,000+ Riders, it's free!
    Back
    Top