Kagu Bosch CX 275

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A powerful Bosch drive unit, voluminous balloon tyres, high load capacity: The Kagu Bosch CX 275 promises pure riding pleasure – on longer tours and on day trips. New: The balloon tyres on the aluminium e-bike now have a diameter of 27.5", thus providing the bike with even better rolling characteristics and additional safety.


Mountain stages, lake rides or city trips: On tours of exploration with your Kagu Bosch CX 275, you’ll discover the most beautiful places in the world. And wherever your journey may take you, the trekking e-bike is the perfect travel companion. Plenty of comfort, stability and a high load capacity make every route an enjoyable experience.


  • Well-conceived components on the Kagu Bosch CX 275, such as the Balloon Tyre Concept, provide several advantages: The extra-wide 27.5" tyres absorb all bumps in the road and make a heavy suspension fork unnecessary. Improved tyre traction and high puncture protection add safety and more riding comfort.
  • The touring bike can carry an incredible 160 kg (including wheel weight, rider, and luggage). This makes the e-bike a true high-load miracle. Add-on parts such as the luggage rack and mudguards blend in perfectly with the frame’s design.
  • The built-in Performance Line CX drive unit by Bosch is lightweight, compact, and extremely powerful. With its 625-Wh battery, you’re sure to have the necessary power reserves for your tour. 
  • The Kagu Bosch CX 275 also features a Vario seatpost, which makes getting on and off the bike a lot easier. When you stop at a red light, for instance, you can lower the saddle and stand on the ground safely and comfortably with both legs. When the light turns green, the push of a button is enough to raise the saddle again.


The wide balloon tyres act as a natural suspension, which makes another type of suspension unnecessary. It also means: You’ll benefit from more comfort, less weight, lower rolling resistance and improved traction.

Good news for everyone who appreciates a clean look: The Advanced Internal Cable Routing technology ensures that all cables run inside the main frame and the rear triangle, which makes them invisible from the outside.


Simplon would not be Simplon if you could not have your bike custom-made there. For the Kagu Bosch CS 275, you can choose from the following add-ons:

  • The optional belt drive requires less maintenance and provides higher durability. It’s also more quiet than a chain. 
  • For longer tours with the e-bike, a second external battery with 500 Wh can be added. The dual-battery option provides you with even more tailwind.
  • bottle holder
  • dual battery
  • baggage handlers
  • belt drive

Geometry table

Does the trekking e-bike fit my proportions and riding style? What frame sizes are available? With the help of the geometry table, you’ll quickly and easily find the right e-bike for your individual needs.

Kagu Bosch CX 275 S (46) M (51) L (56) XL (61)
A 460 510 560 610
B 590 600 605 610
C 69° 69° 69° 69°
D 73° 73° 73° 73°
E 175 180 190 200
F 485 485 485 485
G 1146 1157 1162 1168
H 72,5° 72,5° 72,5° 72,5°
I 465 465 465 465
K 50 50 50 50
M 749 786 823 858
S 652 657 666 675
R 391 399 401 404
STR* 1,67 1,65 1,66 1,67

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