Specialized Levo 4 Redefines eMTB Power and Control | Image Source: bikerumor.com
MADEIRA, Portugal, April 8, 2025 - Specialised has once again shaken the world of electric mountain bike (eMTB) with the launch of its fourth generation Levo, the Levo 4 Turbo. Far from being a simple iterative update, this new machine promises a powerful mix of improved power, smarter control and reflective engineering. With a redesigned frame, a more powerful and quiet engine, an intuitive display and exceptional reduction capabilities, the LEO 4 makes waves not only for its specifications, but also for how these figures translate into real performance.
According to Bikeradar and The Verge, the Turbo Levo 4 is more than another high-end e-bike; It is a reference point for industry orientation. However, the most striking element of this version may not only be the specifications, but how the raw figures were specialized in a harmonious driving experience. The company marker for this machine – “where the superpower is natural… only faster” - is not just the commercial flow. This is a surprisingly accurate summary of the quality of the trip, according to many independent opinions.
What’s up in Turbo Levo 4?
The Turbo Levo 4 was reviewed from the inside, starting with its carbon frame FACT 11m. Unlike some eMTBs that remove batteries in difficult-to-access configurations, the LEO 4 opts for a side access battery compartment that makes power units divert an easy material. A standard 840Wh battery provides the spine for serious follow-up time, but a lighter 600Wh option is available for those looking to lose weight. Add a 280Wh extender, and your travel time extends considerably – up to 4.75 hours in Eco mode with considerable altitude gains, as Bikerumor noted.
What is particularly smart is the integration of a storage compartment in the download, with a small magnetic bag with zipper. Although not exactly suitable for track snacks, it is perfect for tools and tubes, imitating the concept of a replacement tire well in your car. You will need to remove the battery to access it, a minor drawback offset by its utility value.
What is the power of the new Levo 4 engine?
Very. The S-Works high-level model is powered by a Brose engine manufactured by Specialized for maximum torque power 720W and 111Nm. To put this into perspective, the previous Levo generation came out at 565W and 90Nm. This is a substantial increase, placing the Levo 4 near the upper legal limit for Class 1 electronic bicycles, which in the United States only means pedal aid and maximum speed assistance of 20 mph.
But not there. There is a very good “attack code” embedded in the LEO 4 firmware. By pressing a series of buttons, riders can drive the speed cap at 28 mph, essentially transforming the bike into e-bike Class 3. While this mode displays a large Class 3 logo on the handlebar screen to comply with local laws, its existence raises questions. Is it an ethical movement? Or do you specialize in the game of fire, as some suggest?
Is the new Lego quieter?
Yeah, and it’s not just a marketing request. According to several travel reports, including from The Verge, the sound levels of LEO 4 have been significantly reduced by technical adjustments. These include the use of fully metal gears treated on the surface and a new method of insulation – in pot – around the stator. In addition, Specialized decoupled the motor from the metal housing, minimizing noise transmission. These improvements make for a quiet engine, even at low load, offering a more natural run than the machine.
How does the suspension work?
An important feature of LEO 4 is its remarkably marked suspension configuration. Deporting 150mm of travel to the rear and paired with Fox Factory suspension components, the bike shows what a pilot describes as a “maximum carpet ride.” The first impressions on a test trip to Madeira – considered a mountain bike paradise – were mixed, but after geometric adjustments such as lowering the lower support and extending the chain batteries, the bike arrived alive. GENIE technology in the rear impact offers a progressive response capacity of ramp and plush, absorbing both road chatter and great successes without neglecting.
This setting not only adds a layer of comfort, but also makes the bike lighter and more agile than its weight of 43 pounds suggests. For the most part, Specialized managed to disguise the height of the engine thanks to intelligent suspension engineering and geometry options.
To what extent is the development experience customizable?
Very customizable. The Mastermind screen and the Specialized Partner app allow drivers to touch up almost every aspect of engine performance. Cyclists can change between Eco, Trail, Turbo, Auto and the new Dynamic Micro Tune mode. The latter adjusts the power according to the pedal force, keeping the battery in the aircraft while triggering the total power in the climbs. You can set aid levels in 10% slices – a level of granularity that experienced pilots will appreciate.
With Bluetooth connectivity for fitness devices, you have a cabin that feels as advanced as a modern car. Whether it is a technological nerd or a minimalist, the Mastermind screen serves all preferences without abrupting the user.
How fast can you rearm the battery?
This is where the new 12A “Super Charger” shines. According to The Verge, you can zoom the battery from 0% to 80% in less than an hour. This is fast lightning compared to most standard electronic bike chargers. For pilots who forget to load the night before a big trip – or for those who plan several walks in a day – this feature is invaluable.
In addition, the Super Charger includes an Eco mode designed to extend the battery life, a reflective addition that shows Specialized not only continues performance, but also longevity.
What’s the cave?
That’s the price. S-Works for $13,500, which makes it an important investment. Other constructions, such as the Expert ($9,500) and the Pro ($11,500), are delivered with slightly less powerful engines but still maintain a good portion of the basic performance. There is even a frame option for $7,500, ideal for runners who want to build a dream configuration from the ground.
However, many riders will wonder if the improvements justify the cost. If you do not continue the performance on the edge of the bleeding, more favorable budget options in the specialized line or competitors may suffice. But for those who want the best money can buy, the Levo 4 makes a convincing case.
A remarkable grip of the testers is that only the S-Works model gets the highest power engine. Offering this engine through lower level constructions could democratize performance and make LEO 4 accessible to a wider public. If Specialized makes this change still visible.
In general, the LEO 4 specialized in 2025 not only marks the boxes, redefines what these boxes should be. It is fast, quiet, intelligent and finely tuned. But most of all, it’s fun. And in the end, that’s the mountain bike.
As Bikerumor said, Turbo Levo 4 is “one of the best eMTB in the market”. It may not be cheap, but it delivers where it counts.