Darimo IX2AL Stem


Introducing the new Darimo IX2AL stem, the perfect stem for those who love aluminium stems, and of course really light with just 82 grams in 100 mm length.

The stem is sculped from a 7075 aluminium block with precision CNC machining process.

Each stem needs near to two hours of continuous CNC machining as we want the best surface finish even with its organic and round shape. That shape increases the stiffness/weight ratio.

The stem has an integrated faceplate with only 2 closing Ti bolts. This design gives an impressive shape, awesome aesthetics and increases the stiffness at the clamping zone with the handlebar.

Our design is optimized for carbon fibre handlebars. The clamping zone is not divided in two small plates, both bolts are connected, then the surface pressure over the handlebar is reduced. 

It’s body shape and a huge contact surface with the handlebar (24 square centimetres) makes it stiffer than heavier stems.

Finishes: Anodized in Black Bright, Black Matte, Natura. Other colours are possible under order.

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.

Clamping diameter: 31.8mm (Other diameters under order)

Angles: -6º, -12º, -17º y -25º (More angles under order)

Lengths: 40-50-60-70-80-90-100-110-120-130mm (Other lengths under order, as your needs)

Steering diameters: 1-1/8″ (Other diameters under order as 25.4 o 1-1/4″)

Clamping width: 48mm

Stack height: 38mm

Customized Options: Your name engraved over the stem? Different angle, length, colour? Just ask us!

Price (VAT included): 199 € 

Price custom versions: 239€


-Body: 7075 T6 Aluminium anodized.

-Bolts: Ti Gr5 M4.

Weight (+-3%):

Weight (g)  vs  Length (mm) Angle (Deg) Other lengths and angles please ask us
  40mm 50mm 60mm 70mm 80mm 90mm 100mm 110mm 120mm 130mm
52 57 62 67 72 77 82 87 92 97
12º   57 62 67 72 77 82 87 92 97
17º   58 63 68 73 78 83 88 93 98
25º   59 64 69 74 79 84 89 94 99

Which angle and length would I need?

We can give you a dimensions chart, but what about a nonstandard angle or length? Then we give you ALL the information in the next Excel sheet. You will calculate the Reach and Drop for the stems, even including your frame angle to know the exact position of your handlebar.

Click in the next link to download the Excel sheet:

Darimo IX2AL dimensions

What about using it for Road or Gravel handlebars?

Yes, it’s possible with our Darimo Ellipse handlebar.

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 allow an adequate alignment of the fibre with the handlebar and steering tube. We have shown that a power with square-circular section (square with rounded edges), at equal weight, is torsional 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.


Do you want to buy a Darimo IX2 Stem?  Contact us and we’ll contact you shortly.