Specialized Levo 4 Firmware Update: 850W, 111Nm, and a Free OTA Power Unlock

The first over-the-air update for the Specialized Levo 4 goes live today, 17th February 2026 . It bumps peak power to 850W on S-Works and 810W on standard models , smooths out the speed limiter transition, and refines overrun behaviour.
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robikinkela said:
You can verify the existence of this power limit by pedaling in auto mode on a steep climb at a high cadence (120 rpm): the motor cuts power at a certain point instead of increasing it just enough to overcome the obstacle. It happened to me just yesterday and is easily repeatable in the conditions I described. It's not just a personal issue, as some online magazines in the sector have also noted it (see E-mountainbike magazine).
This is also highlighted by the graph published by ebikelab:

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I have hit this power wall repeatedly in just the condition you speak of. It's very annoying!
 
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Double l said:
Absolutely spot on with these findings, also I've been loosing power to the rear mech with the range extender 3 or 4 times per ride, there are other findings but I'll leave that for now
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Yes, same here, losing power to rear mech with the range extender.

There is a separate thread for it.

kayesport

Levo Gen 4 Thread 'Levo GEN4 S Works and a range extender'

Hi, I've just bought a gen 4 S Work and also a range extender. When they are both fully charged and they are plugged in. It says on the dashboard that it is a reduced power!! if I ride just with The standard 850 battery no problem. It only goes to reduce power when they are both plugged in. Has anybody else had this problem? Specialised that don't seem to know what to do at the moment I'm taking the bike back again on Thursday.
 
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robikinkela said:
I've recently had the opportunity to thoroughly test the firmware update and have noticed a few flaws:
1) The motor makes noise when you engage the walk mode, but the same noise is heard every time you stop pedaling and start again, that is, when the electric motor kicks in after a pause.
2) Every time you stop pedaling and start again (and this happens even when you shift gears without exerting yourself), the motor exerts an unnecessary forward thrust, and it does so quite abruptly, to the point of being unpleasant.
3) In the dynamic microtune 0/100 mode, the display does not show the motor power output and the assist ratio.
4) I've noticed that when climbing a hill at a high cadence, the motor reduces support towards the top end, and this happens when you pedal aggressively at a high cadence. Sometimes it even seems like the motor reaches a sort of power wall, only to immediately recover, irreparably jeopardizing its continuity of action.
I sincerely hope that Specialized will fix these flaws as soon as possible, but I also wonder how they could have released an update so hastily: didn't they test it before putting it on the market?
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This is exactly what Im experiencing too.

#4 is the most annoying. I notice it a lot when I start to climb in high cadence up a steep or short hill. Sometimes it feels like the bike power almost shuts off for a second.
 
not 100% sure if we talk about the same issue but this or a similar issue has been mentioned by emtb magazine in a very diplomatic way in february (New Power Update! The S-Works 3.1 – In Our big e-Bike Motor Group Test). Although the issue occured after the update - the issue didn't exist before. As they mention this applies to aggressive riders with fast cadence. So probably it's something else......
1776345655686.webp

However for me it's pretty clear. This must be fixed otherwise I'm done with it unfortunately. I really love the bike but if it doesn't work as expected........ I mean it worked smoothly before (I think I already stated :LOL:)

Specialized addressed 'this' (not sure if it is exactly what we identifed so far) issue here: MOTOR SUPPORT CADENCE LIMITATIONS. However it is not related to the chainring size. They are looking into it.
 
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Does anyone know if the 400% support ratio bumped with the power update? Or is that still the max ratio? Just something I have thought about with Avinox offering 800% and rumours of Bosch offering 600% with their May update.
 
So is Specialized OTA power update 2.0 on its way to keep up with the arms race
Will S bump up to 120nm to keep pace or not bother?
 
DylanJM said:
Does anyone know if the 400% support ratio bumped with the power update? Or is that still the max ratio? Just something I have thought about with Avinox offering 800% and rumours of Bosch offering 600% with their May update.
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Specy did not say that the support percentage had changed.
Anyway, from the specy app stats I see that it seems seems to be getting to 600%

Rider-Motor power.webp
 
richibici said:
Specy did not say that the support percentage had changed.
Anyway, from the specy app stats I see that it seems seems to be getting to 600%

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Do you have the shuttle setting adjusted? After my above post I read further into the Levo settings and the wording they use to me sounds like the shuttle setting alters the assistance past 400%.
 
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