DARIMO CARBON stem-handlebar unit Nexum Carbon Road | 3K glossy / decals blackFor some time now, some of the currently lightest carbon parts for XC bikes and racing bikes have come from the Darimo ...
DARIMO CARBON stem-handlebar unit Nexum Carbon Road | 3K glossy / decals black

For some time now, some of the currently lightest carbon parts for XC bikes and racing bikes have come from the Darimo carbon forge, which is located in beautiful Valencia on the east coast of Spain.

With the Nexum stem-handlebar unit, Darimo Carbon is once again raising the bar a notch. The Nexum stem-handlebar unit weighs 196g (420mm/110mm/-6°) less than most road bike handlebars without a stem. Thanks to the many widths and stem lengths, everyone will find the right setup for them. Titanium screws and aluminum barrel nuts help to save even more weight and ensure reliable clamping on your steerer tube.

The stem-handlebar unit is available in four different finishes (UD glossy or matt, 3k glossy or matt) and in handlebar widths of 360 mm, 380 mm, 400 mm, 420 mm or 440 mm, measured from center to center. The stem length is 70 mm - 130 mm in 10 mm increments and the -6° stem angle allows you a sporty seating position. All offered handlebar widths have a compact reach of 77 mm and 128 mm drop. The flattened upper part ensures comfort when the tour or race lasts a little longer. Laminated guides for brake and shift cables on the underside help you to assemble everything perfectly.

The stem may be clamped to the steerer tube with a maximum of 3.5 Nm. A torque of up to 4 Nm is permitted in the clamping area of the shift/brake lever. Please approach the torque required for secure attachment and do not exceed the maximum values. We recommend using a high-quality carbon paste for assembly. Below the handlebar are two M5 threaded bushings laminated 29 mm apart. At this point you can securely attach a computer holder or similar accessories.

In order to achieve the sensational weight of 196g (420mm/110mm/-6°), to pass the standard ISO 4210-2 test and to be able to approve the components up to 90kg system weight, Darimo Carbon uses a specially developed lamination process. Depending on the handlebar width and stem length, the layer structure is optimally adjusted.

NOTE: The instructions for the product must be observed! Torques must be observed. If you do not have the necessary expertise or tools to correctly install the , the installation must be carried out by a specialist workshop with the appropriate knowledge.

Technical specifications:

Area of intended use : racing bike
Materials: carbon
Stem lengths: 70, 80, 90, 100, 110, 120 or 130 mm
Stem angle: -6°
Clamp height: 43 mm
Shaft Diameter: 1 1/8" (28.6mm)
Max. torque on steerer tube: 3.5 Nm
Handlebar width: 360 mm, 380 mm, 400 mm, 420 mm, 440 mm (measured center - center)
Reach: 77mm
Drop: 128mm
Rise: 0mm
Back sweep: 0°
Upsweep: 0°
System weight: max. 90 kg (driver including clothing and luggage)
Color/Finish: Glossy 3K | Decals black

Weight according to the manufacturer: from 190g
Weight weighed: 196g (420 mm/110 mm/-6°)

Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.


We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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