The New AMFLOW PX Carbon Pro in test – The answer to its predecessor, now with the new Avinox M2S motor?

The launch of the AMFLOW PL Carbon Pro was a statement. Lightweight, ultra-clean integration, brutally powerful on the climbs. But if you looked closely, the trails told a different story: many riders wanted more. More travel. More reserves. More fun.

And suddenly, upgraded PL builds started popping up – longer-travel forks, different shocks, tougher wheelsets. In short: setups clearly leaning towards a more downhill-focused direction. The PL’s restrained trail geometry simply felt too tame once things got properly steep and fast.

AMFLOW are now stepping things up with the AMFLOW PX Carbon Pro, a dedicated e-MTB built for rough trails and high-speed descents. At the same time, the new Avinox M2S motor makes its debut, opening up a new performance class with a maximum torque of 150 Nm and peak power of 1500 W. Alongside it, the AMFLOW PR Carbon Pro joins the line-up as an option for commuters and more moderate trail riders. You can find our full review here.
That brings AMFLOW’s current e-MTB range to three models: PL, PR and PX. Clearly differentiated on a technical level, though their names feel more alphabetically organised than anything else. A bit more character wouldn’t go amiss in this model family.

The AMFLOW PX Carbon Pro we tested tips the scales at a respectable 21.4 kg in size L, making it just 700 g heavier than the existing PL Carbon Pro in the range. Priced at € 9,999 in our top-spec configuration, this e-MTB sits firmly in the premium segment. So how does the new PX Carbon Pro perform on the trails we rode around Tremp in Spain, and back home in the Black Forest?

What details set the new AMFLOW PX Carbon Pro apart?

At first glance, the PX makes it clear it is more than just a lightly tweaked PL. The extremely slim down tube feels almost provocatively delicate for a full-power e-MTB. Its diameter is surprisingly small, and the integration of the motor system is so subtle that the bike looks more like a light e-MTB than a downhill-focused powerhouse. The overall appearance is modern, clean and premium. There is no bulky motor unit or oversized tube shapes, just a sharp, sporty silhouette.

The frame is protected by a down tube guard, while the chainstay features a generously sized protector and a chain guide keeps everything securely in place, even on rough terrain. A small rubber flap at the junction between the main frame and rear triangle effectively stops dirt from building up in that area. Cables are routed neatly through ports behind the head tube, keeping the cockpit tidy. Out on the trail, however, the cables do rattle noticeably against the integrated front light, adding a clearly audible soundtrack. Two tool mounts on the top tube give you space for your trail essentials. A multitool, CO₂ cartridge or tubeless repair kit can all be neatly stowed and kept within easy reach.

The new Avinox M2S motor do in the AMFLOW PX Carbon Pro

The motor system of the AMFLOW PX Carbon Pro is seamlessly integrated into the bike’s overall concept. Both the integration and the packaging are executed to a very high standard, which not only benefits the bike’s clean look but also helps keep the overall weight impressively low. The Avinox M2S motor itself weighs 2.63 kg, paired with a permanently integrated 700 Wh battery. At 3.18 kg and with an energy density of 220 Wh/kg, it ranks among the most energy-dense batteries currently on the market. Charging is handled by a 12 A charger with 508 W output, taking the battery from empty to full in just 1 hour and 47 minutes. The charging port is neatly built into the frame and protected by a sprung magnetic cover which does not feel especially premium, but does the job.

On paper, the Avinox M2S delivers up to 1,500 watts of peak power and 150 Nm of maximum torque. But the real story is not the headline figure so much as how that power can be used on the trail. Especially on technical climbs, finely controlled assistance is often worth far more than brute force alone, but more on that later. The system is operated via the familiar wireless remotes on the handlebar and a neatly integrated 2-inch OLED touchscreen in the top tube, which remains one of the best solutions on the market. On top of that, the Avinox Ride app offers a wide range of tuning options and underlines the bike’s strong tech focus.

The factory-fitted front light is a genuinely useful feature in day-to-day riding. It is directly integrated into the motor system, draws power from the main battery and is controlled via the display or remote. That means you can not only switch it on and off, but also easily toggle between high and low beam. A rear light is also said to be included.

The most important technical details of the new Avinox M2S motor system

• maximum power: 1,500 W
• maximum torque: 150 Nm
• battery: 700 Wh (3.18 kg, 220 Wh/kg)
• drive unit weight: 2.63 kg

What is the spec of the new AMFLOW PX Carbon Pro like?

For the suspension, AMFLOW rely on proven high-end FOX components. Up front, a FOX 36 Factory fork with GRIP X2 damper delivers 160 mm of travel, while a FLOAT X Factory shock controls 150 mm at the rear. Both offer strong trail performance and a wide range of adjustment options.

Braking comes courtesy of the new MAGURA Gustav Pro, paired with 203 mm rotors front and rear. As we have already seen on the Unno Mith, the rotors feature machined cut-outs for the speed sensor. The Gustav Pro offers adequate stopping power, but it is definitely one of the weaker brakes on the market, and that does show in more extreme trail situations. Fine modulation is also not its strong suit. We would also have liked to see a direct 200 mm post mount at the rear. The adapter solution on the back end looks untidy, and there is really no good reason to stick with 180 mm on an e-MTB, especially not on a bike with ambitions like this.

Shifting is handled by SRAM’s Eagle X0 Transmission, paired with a 38 t chainring. The direct-mount derailleur shifts accurately, remains reliable under load and is wired directly to the main battery. That not only saves you from charging a separate AXS battery, but also brings practical features such as Smooth Shift and a brief reduction in motor power during gear changes. The large front chainring improves load distribution across the drivetrain and reduces strain on the smaller cassette sprockets. Together with the straighter chainline, that has a positive effect on both wear and efficiency.

For the wheels, AMFLOW use their in-house XMC-30 carbon wheels, which come as standard in a mullet setup. Our test bike, however, was built as a full 29er. Tyres are supplied by Schwalbe in the tough Gravity Pro casing, with a Magic Mary in the super-sticky Ultra Soft compound up front and an Albert in the harder, more durable Soft compound at the rear. It is an excellent combination, delivering maximum grip at the front and better durability at the back. Top marks.
That said, despite the robust tyres, we suffered a total rear wheel failure during the test and the carbon rim cracked, which still leaves questions over the long-term durability of the in-house rims. As a temporary fix, the bike was then ridden with a different rear wheel and a MAXXIS tyre fitted.

Alongside the wheels, many other components are also made in-house. The cockpit consists of a proprietary 35 mm stem and an 800 mm handlebar with a 40 mm rise. Functionally, there is little to criticise here, although the quality of the stock grips falls noticeably short of the rest of the bike.

The dropper post is also an in-house unit and offers a respectable 190 mm of travel, with up to 230 mm depending on frame size. On top of that, the stroke can be adjusted by up to 25 mm in 5 mm increments. In practice, though, there is still room for improvement. The collar is quite tall at 49 mm, and even when fully dropped the post still protrudes relatively far from the frame. The cable is also clamped at the post rather than the remote, which makes removal more frustrating than it needs to be. The dropper is comparatively slow in operation too, and it was not always completely reliable during our test.
Removing the shock is not particularly service-friendly either. It is difficult to get a torque wrench cleanly onto the bolts, which makes reinstallation more fiddly than necessary. These are not major issues, but they are the sort of details that should be better resolved on a premium bike.

Tuning tip:
swap the grips for higher-quality alternatives and if you ride rough terrain regularly, keep an eye on the wheels or switch to proven aftermarket options

The AMFLOW PX Carbon Pro geometry check: more adjustability, but does it make sense?

The new AMFLOW PX Carbon Pro is available in four sizes from M to XXL and can be ridden either in a mullet setup with a 27.5″ rear wheel or as a full 29er. On top of that, it comes with an extensively adjustable geometry package, offering five head angle settings, two bottom bracket positions and four chainstay lengths. According to the manufacturer, that adds up to 40 possible setups in theory. In practice, though, it is more adjustability than most riders will ever need, as much of it feels more like fine-tuning than a genuinely noticeable change in character.

As standard, the bike comes with a 64.2° head angle. With interchangeable 0.5° and 1° headset cups, this can be adjusted across five settings between 65.2° and 63.2°. That certainly creates plenty of scope, but it is more of a workshop job than something you would realistically want to do on the fly.

The more relevant adjustment happens at the rear. Using different chips supplied with the bike, the chainstays can be altered in four positions by 0, 3.3, 6.7 or 10 mm, growing from a compact 438.36 mm to 448.36 mm. This is mainly necessary because the chainstay length does not increase with frame size, so this solution effectively lets you tailor the rear end to different rider sizes and preferences. The bottom bracket height can also be changed via a flip chip, raising or lowering the bottom bracket accordingly.

Particularly well executed are the very short seat tubes across all sizes. They give you plenty of freedom of movement on descents and allow the use of long-drop posts, even if the fitted AMFLOW dropper gives away some of that advantage with its fairly tall stack height. At 478 mm in size L, the reach is fairly average.

Other build options for the AMFLOW e-MTB

The new AMFLOW PX is available not only in the “Moonstone Gray” finish of our test bike, but also in the even more understated “Phantom Black” colourway.
Alongside the PX Carbon Pro we tested, AMFLOW also offer the more affordable PX Carbon, priced at € 6,999. Both versions use the same Avinox M2S drive system with a 700 Wh battery, so opting for the cheaper model does not mean sacrificing motor power or range. The MAGURA Gustav Pro brakes and Schwalbe tyre setup are also identical on both builds.

The biggest differences come down mainly to the suspension, drivetrain and wheelset. The AMFLOW PX Carbon uses a FOX Performance suspension package, which offers fewer adjustment options and cannot match the performance of the Carbon Pro’s Factory-level setup. For shifting, AMFLOW spec a SRAM S1000 Eagle Transmission derailleur, marking the entry point into SRAM’s electronic Transmission range. Rounding off the build are AMFLOW XMA-30 aluminium wheels.

How does the new AMFLOW PX Carbon Pro perform on the trail?

What is the uphill performance like?

We tested the new AMFLOW PX Carbon Pro with a rider weight of 81 kg, running 86 psi in the FOX 36 and 198 psi in the FLOAT X. AMFLOW’s quick start guide suggests around 180 psi in the shock for this weight as a rough baseline, but that felt noticeably too soft for us and did not achieve the target 30% SAG. Adding just under 20 psi brought the setup much more in line with what we were after. Our preferred geometry setup was short chainstays, a 64.2° head angle, a low bottom bracket and two 10 mm spacers under the stem.

On the way to the trail, you sit comfortably centred within the bike, able to put solid pressure through the pedals without adopting an overly aggressive riding position. From the very first metres, the bike feels intuitive, requiring almost no adaptation. Climbing, the PX stands out with an exceptionally light-footed, lively character. The low overall weight is immediately noticeable. You can place the bike precisely and pop it playfully over ledges. Even tight direction changes in technical uphill sections demand very little effort.

The real difference on the climbs, however, comes from the motor’s character. The Avinox M2S delivers performance on a level that fundamentally changes how you approach uphill riding. Instead of picking your way slowly through technical sections at low speeds, constantly shifting your weight, carefully managing traction and dealing with a wandering front wheel, you tackle many of these sections at a much higher base speed. Where you would normally creep over an obstacle at 8 to 10 km/h, you now see 19 to 22 km/h on the display, which noticeably stabilises the bike.

A loose rock slab? Instead of grinding your way up out of the saddle, trying to maintain rear wheel traction, you carry speed and charge straight up. A stepped root section no longer requires carefully balancing each individual ledge, you simply glide over it in one fluid motion. Even tight, steep switchbacks remain manageable, as the consistent forward drive keeps the bike stable. In other words, you are no longer riding on the edge of balance. You are riding above the critical speed at which the bike becomes unstable. This shifts the limiting factor. Traction becomes less of a dominant issue, as the system generates enough forward momentum to carry you across loose and uneven terrain.

And yet, rear wheel traction remains impressively high. The Avinox M2S releases its power very quickly, but never in an uncontrolled way. It responds instantly to rider input and adapts dynamically to changing terrain. The power delivery feels direct and highly responsive, but not nervous.

That makes the PX’s uphill performance one of its standout strengths, even if on very steep sections you still need to actively weight the front wheel to keep it from lifting, as expected. With 1,500 watts of peak power, Avinox are pushing into new territory in terms of output. That inevitably raises questions about long-term durability. Whether such high power figures are truly necessary is open to debate, but in practice, the system remains surprisingly well controlled.

How does the new AMFLOW PX Carbon Pro perform on the descents?

Heading downhill, you stand well integrated within the bike, nicely balanced between the front and rear. The handling is intuitive, and the low weight makes quick line changes easy, especially when aiming for high lines, encouraging an active riding style. The bike’s core character is clearly geared towards composure and control in every setup, which really comes into its own in rough terrain. Charging through rock gardens at speed is exactly what the AMFLOW PX Carbon Pro thrives on, and even in steep sections it holds its line with impressive calm.
The suspension plays a big part in this. It is tuned on the softer side, offering excellent sensitivity over small bumps and delivering plenty of comfort on the way down. Towards the end of the travel, a well-defined progression prevents harsh bottom-outs.

In the mid-stroke, though, the rear end lacks a bit of support. It feels slightly vague through the middle of the travel, so when you really push into the bike, it offers less resistance than expected. That reinforces the bike’s comfort-first character, but it also means a fair bit of energy gets lost in the suspension when pumping and pushing through flow trails.

Personally, we preferred the shorter chainstays combined with the low bottom bracket. That setup gives the bike a more dynamic feel. The PX comes across as livelier, is easier to lean into berms and responds more directly to shifts in body weight. It still does not turn the AMFLOW PX Carbon Pro into an outright corner-hungry trail slayer, but it does add a welcome touch of agility on the descents. At the same time, you hardly miss the added stability of the longer chainstays, because with its already slack head angle, the PX is stable enough as it is.
The only real downside on the descents is the noise. The clearly audible cable rattle against the front light stands out on the trail and does not match the otherwise premium feel of the bike.

Who is the new AMFLOW PX Carbon Pro for?

The AMFLOW PX Carbon Pro is clearly aimed at riders who wanted their PL to do more. If you already found yourself upgrading components on the PL, the PX now gives you a more coherent platform straight from the factory. You get more reserves and more downhill stability without giving up the low weight and huge climbing capability. Quite the opposite, in fact. The Avinox M2S drive system pushes uphill performance to a level that very few bikes can currently match. Riders who regularly tackle steep, technical climbs and want to get up them not just successfully but quickly and efficiently will benefit in a big way.

Conclusion on the new AMFLOW PX Carbon Pro

With the new AMFLOW PX Carbon Pro, the brand deliver a far more mature take on their performance e-MTB. It offers more reserves, more composure and, above all, brutally strong climbing performance. The Avinox M2S drive system does not just post huge headline figures. Combined with the bike’s low weight, it genuinely changes the uphill riding experience. On the descents, the PX impresses with plenty of stability and confidence, even if the rear end’s mid-stroke support and a few of the components could still do with some fine-tuning. All in all, the PX is a strong, technically well thought-out performance e-MTB that adds real value to the Chinese brand’s line-up. The concept works.

Tops

• high composure on descents
• stylish design
• extremely high motor output that is consistently available
• exceptional uphill performance with very high cruising speed
• excellent motor system integration
  

Flops

• slightly vague mid-stroke support at the rear
• MAGURA Gustav Pro lacks modulation
• underwhelming dropper performance
• cable rattle against the front light

You can find more information about the AMFLOW PX Carbon Pro on the AMFLOW website.