Inissio Pmax

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The second-generation INISSIO PMAX is supported by a specially developed hub motor that assures smooth running with minimal weight. The lightweight carbon frame allows wide tyres and offers many mounting points for practical accessories. Unbeatably versatile and beautiful, the INISSIO PMAX will make the hearts of all gravel enthusiasts beat faster.


On the road, on gravel or on an easy trail – the gravel e-roadbike by Simplon boasts an impressive affinity for rough terrain thanks to a tyre clearance of up to 40 mm. But that’s not all! It’s also perfect for everyday use: With mudguards, a light system and a rear rack, the e-roadbike turns into a real all-in-one utility bike. For bike travellers, commuters or gravel racers, the carbon roadbike is an absolute must-have! What else does this e-roadbike by Simplon have to offer? Let’s find out! 


  • High-profile tyres with up to 40 mm in width provide comfort, increased accident protection and lots of grip to be able to safely ride even on rough terrain. 
  • Almost invisible and super lightweight (at only 2 kg): the hub-drive motor by Ebikemotion between the sprocket cluster and disc. The drive unit reaches a torque of up to 40 Nm and supports the rider on the mountain at a speed of up to 26 km/h. If you ride without support, you hardly notice the drive unit. With hardly any resistance, it allows for efficient riding on flat terrain. 
  • A 250-Wh battery is seamlessly and beautifully integrated into the down tube. The charging socket is easy to reach because of its location between the down tube and the seat tube. A range extender, which can be connected right at the charging socket, offers you the possibility to double your range. 
  • Control – but safe! The control unit sits perfectly integrated in the top tube. Via button and colour-spectrum LED display, you can select three support levels. The display also shows you the battery capacity. A display on the steerer thus becomes obsolete.  


The innovative technology features by Simplon were used on the Inissio Pmax as well, of course. Here are the high-end highlights of the e-roadbike: Say goodbye to tangled cables and hello to a clean look: with the internal cable routing through the headset and the optional steerer/stem unit! The gravel e-roadbike is designed to conquer long distances. To make the riding experience even more relaxed and comfortable, Simplon uses its tried and tested Comfort Concept. Top tube, seat stays and seat tube constitute a perfect unit at the point where they merge. The Raptor Dropout technology – rear-facing dropouts – gives the bike higher vertical flex and more comfort at the fork. A definite bonus in rough terrain! 


The Inissio Pmax gives you plenty of options for upgrades, which lets you turn the e-roadbike into your own personal roadbike! If you need more power for longer rides, you can mount a range extender at the bottle cage position and increase the battery capacity by up to 670 Wh. We’ve also got great news for bike travellers and commuters: The gravel e-bike is available with matching mudguards, a rear rack and light system by Busch & Müller. Suitable for daily use? Check! 

  • Wheels
  • Ergonomic cockpit
  • Crank box
  • Baggage handlers
  • Mudguards
  • Lighting system
  • Additional battery

Geometry table

Does the gravel e-roadbike fit my proportions and my riding style? Which frame size do I need? The geometry table lets you find the right roadbike for your individual needs. Because there’s one thing you should know: The geometry is the deciding factor in how your bike acts on rough terrain!

Inissio Pmax 45 49 53 57 62
A 430 470 510 550 600
B 523 535 565 585 605
C 69° 70° 70° 71° 72°
D 74,5° 74,5° 73,5° 73,5° 73,5°
E 120 135 160 185 210
F 425 425 425 425 425
G 1025 1029 1050 1061 1072
H 67 67 67 67 67
I 400 400 400 400 400
K 48 48 48 48 48
M 715 748 781 812 843
S 535 553 577 604 632
R 375 382 394 406 418
STR* 1,43 1,45 1,46 1,49 1,51
A Seat tube length mm
B Top tube length
C Head tube angle
D Seat tube angle
E Head tube length
F Chainstay length
G Wheelbase
H Bottom bracket drop
I Fork length
K Fork offset (rake)
M Stand over height
R Reach
S Stack
STR* Stack to Reach

*STR: The higher the number, the more upright is the seating postion.

Test Reports

Tested by RCDE: the Inissio Pmax | A gravel e-bike by Simplon

RCDE takes a closer look at the Simplon Inissio Pmax – a forest, grass and gravel racer with a barely visible drive unit. Go to test review! 

Read more!

Simplon Experience Center

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At Simplon’s Experience Center in Hard, you get to experience the fascination with our bikes first hand.

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