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why the maxon AIR S bikedrive?

The moment you ride the Ocelot with Maxon AIR S, you feel it from the first pedal stroke. No stuttering motor, no artificial push. Just pure, responsive power that feels like a high-quality analogue mountain bike with a silent boost.

Ocelot with the maxon AIR S drive system

natural ride feel

When we started the Ocelot project, we had only one focus: we wanted to build an eMTB that would look and feel like a normal mountain bike. But still would give you a nice push when you need it. The maxon AIR S is just the perfect drive system to achieve that. Full-power assistance in a lightweight refined package.

whisper-quiet

This isn’t the typical eMTB motor rumbling away in the background; it’s a whisper-quiet system that wins you over straight away, leaving you wondering why you ever put up with the noise and weight of heavier motors

Our riders are rarely chasing motor output alone. They do not want to ride a small motorbike, they want a platform that climbs with control, descends without compromise, and does not burden the chassis with unnecessary mass or drag. In that context, the maxon AIR S is not just another drive unit. It is a specific answer to a specific brief: full-power assistance in a lighter, more refined package.

ride quality

This system was developed with a clear emphasis on efficiency and ride quality. The motor delivers substantial torque for steep technical climbing, yet it avoids the heavy, overdriven character that can make some full-power eMTBs feel detached from the trail. Instead, support comes on with a measured, highly controlled response.

Add enough weight to a frame and every part of the bike changes – suspension behavior, corner entry, mid-air balance, braking load, and the general sense of agility. The AIR S sits in a very attractive zone because it gives meaningful support without forcing the bike into the deadened feel that some heavier powertrains create. That balance is not a marketing detail. It is the difference between an eMTB that still rides like a great performance mountain bike and one that simply happens to be fast uphill and rides like a small motorcycle.

the most natural

The brand new maxon AIR S drive unit feels like you ride an analogue bike. But gives you up to 4 times more power. In silence.

for us only ride feel matters

Motor comparisons often get reduced to torque figures and battery capacity. Those numbers have value, but experienced riders know they rarely tell the whole story. What separates a good drive system from a great one is how naturally it translates rider input into forward motion.

The maxon bikedrive AIR S has earned attention because its support character feels deliberate rather than abrupt. On loose climbs, that means less wheelspin and less need to modulate your own effort around an overeager motor. On rolling terrain, it means the bike keeps momentum without feeling like it is surging independently of the rider. On longer rides, it means less fatigue from constantly managing excess assistance.

That controlled behavior also affects descending, even when the motor is not the main actor. A lighter, more compact unit gives frame engineers more freedom with kinematics, center of gravity, and packaging around the bottom bracket area. The result is a frame design that feels more composed and more intuitive at speed.

Noise is part of this discussion too. Many experienced riders are surprisingly sensitive to drivetrain and motor sound, especially on premium builds where every other component has been chosen for refinement. A quieter system keeps the riding experience cleaner. You hear tires, terrain, and trail feedback instead of constant mechanical presence. That is not cosmetic. It changes how connected the bike feels.

space technology

maxon’s drives are used in robots, vehicles, and devices all over the world – and even in the Mars NASA rover Perseverance.

about maxon

Maxon Group is a swiss multinational, founded in 1961 and the world’s leading supplier of high-precision drive systems. More than 40 years’ experience, constant innovation, top-quality products and competent customer service make maxon motor a reliable partner in the drive technology sector.

Maxon Group is active worldwide, employing 3,200 people in 41 countries and a yearly revenue of roughly 600 million.

Maxon became popular when its products were chosen by NASA for the Mars rover projects Sojourner, Spirit, Opportunity, and Perseverance.

Maxon developed also bike drive systems, like the AIR and the AIR S. The AIR S drive unit consists of a BLDC internal-rotor motor and a low-noise performance planetary gearhead. The Q-factor starts at just 155 mm. The integrated electronics and sensors ensure sensitive support in all riding situations. The patented, innovative freewheel has no noticeable resistance, both when backpedaling and when riding without electrical support.

Maxon operates a global service network of over 40 sales companies and 9 production sites, providing local support and technical assistance across the world.

integrated battery

A 400Wh lithium-ion battery of only 1.8kg is integrated in the down tube. With an impressive drive efficiency of 83% this is plenty for great epic rides.

powerful drive

90Nm of torque, a maximum output of 620W and only 2kg. Every climb feels like great fun.

performance focused

A lighter drive system allows the rest of the bike to stay performance-focused. You are not forced into overbuilt choices everywhere else just to compensate for a very heavy motor-battery package. Wheels can remain responsive. Suspension can be tuned for grip and support rather than simply carrying excess mass. The complete bike feels fast rather than merely powerful.

There is, however, a trade-off. Riders who want the absolute largest battery and the most extreme all-day range at maximum support may find heavier systems more aligned with their priorities. That is the usual compromise. The maxon AIR S makes more sense for riders who care about the total ride package and who understand that usable performance is not the same thing as the biggest possible numbers.

for sporty riders

Take a 250Wh range extender or the 6A fast charger to extend your rides.

where the maxon air s makes the most sense

This system is particularly compelling for sporty riders who want assistance to extend their range, increase vertical gain, and sharpen repeatability on demanding terrain without giving up the handling standards of a serious mountain bike.

That includes riders who spend time on steep alpine climbs, technical traverses, and rough descents where chassis balance matters as much as motor output. It also suits buyers moving from enduro bikes who want e-assistance but are wary of the cumbersome feel some full-power eMTBs bring with them.

The maxon AIR S offers a more convincing bridge because it supports aggressive riding rather than redefining it.

The system belongs naturally on exclusive, high-end eMTBs where handling precision, low noise, and refined power delivery are part of the brief from the start. On a bike such as the Ocelot, that kind of system choice aligns with a broader engineering philosophy, one centered on ride quality, technical climbing control, and a complete build that feels considered at every level.

from  9.669

Lightweight eMTB for fast trail riding. With 160 / 125 mm of travel and powerful 90Nm Swiss made maxon AIR S drive system. Made in Europe.

ocelot 125 frame

from  10.078

The ultimate lightweight eMTB all-rounder. With 160 / 135 mm of travel and powerful 90Nm Swiss made maxon AIR S drive system. Made in Europe.

ocelot 135 frame

from  10.307

Capable lightweight eMTB, master of rough natural terrain. With 170 / 145 mm of travel and powerful 90Nm Swiss made maxon AIR S drive system. Made in Europe.

ocelot 145 frame