Kiaro Disc

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With the KIARO DISC, SIMPLON sends a comfort racer to the road that doesn’t shy away from comparison. With features like the Comfort Concept or the Raptor Dropout on the forks, the focus is on comfort without sacrificing SIMPLON’s racing genes. The clean look of the internally routed cables in the Smart Headset creates a cool front view without cable clutter. To improve braking performance, especially in wet conditions, the KIARO DISC is equipped with the latest generation of disc brakes. Overall, an outstanding bike for those who value comfort but don’t want to sacrifice speed.


On the Kiaro Disc, comfort and speed enter a perfect symbiosis. The notorious saying “Speed knows no pain” doesn’t apply in this case. The road bike not only allows you to be among the front runners. It also lets you master every marathon with relative ease. The speed genes of the carbon bike can be felt instantly: When accelerating, the bike reacts immediately and directly converts power into forward propulsion. What’s more, the balanced geometry and comfortable sitting position will impress long-distance pros in particular.


  • To improve braking performance especially on wet terrain, the Kiaro Disc comes equipped with Flat Mount Disc Brakes of the latest generation. They give you excellent control over the bike – no matter the weather conditions.
  • Another plus of this comfort racer: a clean look thanks to internal cable routing through the Smart Headset, which gives the bike a cool and sleek head-on view without the usual jumble of cables.
  • Short lever travel, always the same pressure point, easy handling: That’s what you get with the Shimano Ultegra Di2 groupset. This electronic shifting system enables precise and effortless shifting of gears in any situation.
  • The ARC1 handlebar-stem unit is designed for exceptional aerodynamics. Wide handlebars provide a comfortable surface to rest your forearms on – perfect for the standard aerodynamic riding position.



Simplon wouldn’t be Simplon, if they didn’t equip their road bikes with the latest technology. Of course, the Kiaro Disc is no exception. The comfort racer boasts Maximum Power Transfer. The tube cross-sections of the chainstays as well as the carbon structure are designed for maximum stiffness in the bottom bracket area. This means: It could hardly provide any more propulsion! The left chainstay gives the bike additional stiffness with its prominent fin.

The Kiaro’s secret sauce: the so-called Comfort Concept. Ultra-thin VIBREX® seatstays, a seatpost with VIBREX® technology and a flattened top tube ensure exceptional suspension and sitting comfort. Additionally, the Raptor Dropout – rear-facing dropouts – increase vertical flex and thus riding comfort.


The upgrade options on the Simplon Kiaro Disc let you configurate your bike according to your preferences. 

  • Crank box
  • Wheels
  • Ergonomic cockpit
  • Power meter

Geometry table

Does the marathon bike fit your proportions and riding style? Which frame size do you need? Simplon’s geometry table helps you find the right bike for your individual needs. Because there’s one thing you should know: The geometry is the deciding factor in how your bike acts on the road!

Kiaro Disc 46 49 52 55 58 61
A 420 450 480 500 520 550
B 500 527 542 556 573 588
C 69° 70° 72,5° 72,5° 72,5° 72,5°
D 73° 73° 73° 73° 73° 73°
E 120 136 151 176 195 216
F 403 403 403 403 403 403
G 981 985 980 994 1010 1025
H 74 74 74 74 74 74
I 382 382 382 382 382 382
K 50 50 50 50 50 50
M 699 728 748 769 788 816
S 522 542 564 588 608 630
R 352 361 370 376 387 396
STR** 1,48 1,50 1,52 1,56 1,57 1,59
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

Kiaro Disc tested by RennRad

The experts of RennRad tested the Kiaro Disc by Simplon in two different versions. Find out more about their results and how the bikes performed in comparison!

Read more!

The Kiaro Disc was tested by

The Kiaro Disc road bike by Simplon impresses with its comfort, geometry as well as its handling and riding characteristics. Read more about the test by RCDE! 

Read more!

Simplon Experience Center

Experience Center

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

Kiaro Disc

A SIMPLON roadbike stands for highest quality and attention to detail. No matter if you are an athlete or a leisure biker, with a SIMPLON carbon roadbike you can enjoy all kinds of rides.
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