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DARIMO CARBON je mala španjolska tvrka, ali naveliko poznata po izradi ultralaganih komponenti (volani, lule volana, cijevi sjedala i obujmice) odnosno najlakših komponenti na svijetu. Komponente osim što su vrlo lagane i optimirane, vrlo su sigurne za korištenje budući da su podvrgnute brojnim testiranjima, kako na računalima, tako i u laboratoriju, i konačno na terenu. O kvaliteti ovih vrhunskih proizvoda dovoljno govori što ih koriste neka od najvećih imena svjetskog biciklizma. U nastavku su specifikacije preuzete sa službene DARIMO web stranice.


Introducing the new Darimo IX2 stem, the perfect stem for your mountain or road bike with a weight of just 66 grams in 100 mm length.

The stem is manufactured in a single piece from unidirectional and bidirectional carbon fabrics. It has a careful construction and lamination that allow to reduce weight maintaining vertical and torsional stiffness. The front part has an integrated cap, non-removable, with the two screws on the bottom which gives a perfect aesthetic.

Like all our products, each stem is laminated by hand, then the exact number of carbon layers with correct direction are placed at each stem point.

In combination with carbon, M4 titanium screws are used with a bigger head to prevent damages during the assembly. The small nuts are made with anodized 7075 aluminum.

Finishes: 3K Gloss, 3K matte, UD matte, UD gloss (the UD finish may have small voids due to the difficulty of air flow and a weight gain of 3-4 grams).

Weight limit: The Darimo stem is safe and exceeds the tests of ISO 4210-2, but it is not recommended for riders over 90 kg. Request the reinforced version if necessary.

Uses: Road, Cyclocross, MTB.

Clamping diameter: 31.8mm

Angles: -6º, -12º, -17º, -25º

Lengths: 60-70-80-90-100-110-120-130mm

Steering diameters: 1-1/8″ and 1-1/4″ oversize version.

Clamping width: 46mm

Stack height: 46mm

Road handlebar compatibility: Darimo Ellipse. Not compatible with aero handlebar (wider at top zone) We will inform you if we found more handlebars compatible with the stem just ask us.

We continue increasing the range of options according to the users demands. Ask us the measure you need.

Default color of the logo is stealth black, but there is available a logo decal in many different colors, so you can choose color you want and tape it over those default black logo.


-Body: Unidirectional and bidirectional carbon fibre fabrics.

-Nuts: Anodized 7075 T6 aluminum.

-Bolts: Ti Gr5 M4.

Weight (+-3%):

60mm-57g           70mm-59g         80mm-61g       90mm-63g

100mm-66g        110mm-70g       120mm-74g     130mm-78g


If you want a different finish or if you are over 90 kg, just indicate it, we will manufacture a product according to your needs.

Why that shape?:

Why we produce a stem with not round section? Why not square?
It is not an arbitrary decision, it’s an engineered design.
After many computational finite elements analysis (FEA) we have manufactured the power with the perfect cross section.

The external dimensions allows an adequate alignment of the fiber with the handlebar and steering tube. We have shown that a power with square-circular section (square with rounded edges), at equal weight, is torsionally stiffer and the stress is reduced by 20% compared to a perfectly square or round section. Therefore we have achieved the combination that provides the stiffer and lightness possible. The following graph shows the results of the analyses performed. We do not choose the shape, engineering chooses it.


The IX2 with only two bolts stem can be used with our Ellipse Road Handlebar. In the next link or video at bottom of the page you can see how to asemble both products together: