Kagu Bosch Uni 275

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If you’re looking for an eye-catcher with a first-class drive, a low stepthrough and very high payload, the KAGU BOSCH UNI 275 is your perfect choice. The proven 27.5" balloon tyre concept rolls ensures best rolling characteristics, higher seating comfort and optimised traction. The battery is elegantly integrated into the frame and with 625 Wh offers plenty of capacity. For long rides or tours lasting several days, a second battery with an additional 500 Wh is optionally available.


The Kagu Bosch Uni 275 is an aluminium step-through model with the genes of an allrounder. For longer tours, for your daily commute to work or for a shopping trip to the supermarket: The trekking e-bike is perfectly equipped to handle every situation. With a total weight of 160 kg (including bike, rider, and luggage), the e-bike is also a true high-load miracle – so anyone planning to go on longer trips with it won’t have to make do without luggage.


  • The Kagu Bosch Uni 275 provides extra comfort with its step-through frame, the integrated battery (key word: legroom), the adjustable stem, and the integrated Vario seatpost, which makes getting on and off the bike a lot easier. 
  • The ingenious balloon tyre concept with extra wide 27.5" tyres provides efficient suspension on uneven terrain, making an additional suspension unnecessary. This also results in more comfort, less weight and lower rolling resistance.
  • The 625-Wh battery was elegantly integrated into the downtube and supplies the drive unit with plenty of power. The position of the battery ensures a balanced centre of gravity and thus safe and comfortable handling of the bike. In addition, the powerful Performance Line CX drive unit by Bosch provides the necessary tailwind on long and strenuous tours.
  • The optional integrated belt drive requires less maintenance and has a longer service life. 


When it comes to technology, Simplon draws on its full range of available resources: The frame of the Kagu Bosch Uni 275 is equipped with Top Performance Aluminium. A special aluminium alloy ensures a lightweight frame and, at the same, very stiff and durable frame. 

For a clean look and to protect the cables on the trekking e-bike, all cables are routed internally through the main frame and the rear. Advanced Internal Cable Routing is the name of this technology.


The Kagu Bosch Uni 275 allows for a wide range of configuration options. For instance, an optional belt drive can be attached thanks to an opening on the right seatstay. The advantages of the belt drive: increased durability and less maintenance required. In addition, a belt drive is lighter and 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 ensures you’ll enjoy 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? The geometry table helps you find the right e-bike for your individual needs.

Kagu Bosch Uni 275 XS (40) S (45) M (50) L (55)
A 400 450 500 550
B 605 610 615 620
C 69° 69° 69° 69°
D 72° 72° 72° 72°
E 180 190 200 200
F 495 495 495 495
G 1159 1165 1170 1175
H 72,5 72,5 72,5 72,5
I 465 465 465 465
K 50 50 50 50
S 657 666 675 675
R 392 394 396 401
STR* 1,68 1,69 1,71 1,69
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 position.

Trailer which is mounted on the rear wheel is allowed for the following models: KAGU BOSCH CX 275, SPOTLIGHT BOSCH CX, KAGU BOSCH UNI 275, KAGU NEODRIVES

Our gadgets – the trailer adapter

By using this trailer adapter, you can connect a trailer to your Simplon bike. A stable and safe connection is guaranteed and all customary trailers can be used. Check out the video to find out more and which models you can use the adapter with.
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