Darimo's carbon forge, which is located in beautiful Valencia on the east coast of Spain, has been producing some of the lightest carbon parts for XC bikes and road bikes for some time now.
With the Nexum Drag stem/handlebar unit, the Spaniards have now added the aero crown to their well-known Nexum stem/handlebar unit. The Nexum Drag stem/handlebar unit weighs 218g (380 mm/100 mm/-6°/6° flare), which is less than most road handlebars without a stem. Thanks to the many variations, everyone will find the right setup for themselves and their bike. Titanium bolts and aluminum barrel nuts help to save even more weight and ensure reliable clamping on the steerer tube.
The stem/handlebar unit is available in different finishes and in handlebar widths of 360 mm, 380 mm, 400 mm, 420 mm or 440 mm, measured from center to center. There is a choice of stem lengths from 70 mm to 130 mm in 10 mm increments and stem angles of -6° or -12°. Darimo has also taken into account the desire for different flare variations, so you can choose between 0° and 6° for the road version. If you want a little more, we recommend the Gravel version with 16° + 5° in the lower link. All variants on offer have a compact reach of 77 mm and 128 mm drop. The flat top link minimizes the area exposed to the wind and also allows your hands to be supported comfortably, so you can ride long distances without getting tired. Laminated guides on the underside for brake and shift cables help you to mount everything perfectly.
The stem can be clamped to the steerer tube with a maximum torque of 4 Nm. A torque of up to 4 Nm is also permitted in the clamping area of the shift/brake levers. Please approach the required torque for secure fastening and do not exceed the maximum values. We recommend using a high-quality carbon paste during assembly. The existing stem clamping surface must be at least 32 mm. Two M5 threaded bushes are laminated underneath the handlebars with a distance of 29 mm between them. At this point you can securely attach a computer holder or similar accessories.
In order to achieve the sensational weight of 218g (380 mm/100 mm/-6°), to pass the standard ISO 4210-2 test and to be able to approve the components up to 90 kg system weight, Darimo Carbon uses a specially developed lamination process. Depending on the handlebar width and stem length, the layer structure is optimally adapted.
NOTE: The instructions for the product must be observed! Torques must be strictly adhered to. If the necessary specialist knowledge or tools for correct installation are missing, the installation must be carried out by a specialist workshop with the appropriate knowledge.
SPECIFICATIONS
Area of application: Road bike
Material: Carbon
Top link shape: aero
Lower link shape: compact
Cable routing: fully integrated (routed through the stem) or through external cable ducts
Stem lengths: 70, 80, 90, 100, 110, 120, 130 mm
Stem angle: -6°
Clamp height: 34 mm
Steerer tube diameter: 1 1/8" (28.6 mm)
max. torque on steerer tube: 4 Nm
Handlebar width: 400 mm (measured center - center)
Reach: 77 mm
Drop: 128 mm
External bend / flare: 0° flare or 6° flare
Rise: 0 mm
Backsweep: 0°
Upsweep: 0°
System weight: max. 90 kg (rider incl. clothing and luggage)
Weight according to manufacturer: 245g (400 mm/120 mm/-6°)
Weight self-weighed: 218g (380 mm/100 mm/-6°)
