An ultralight alloy stem built around your bike fit.
Choose a standard IX2AL or IX4AL, or order a custom length, angle and colour.
Order now and we will contact you to confirm the dimensions, colour, compatibility and rider weight before ordering from Darimo.
Choose your Darimo stem
IX2AL Alloy Stem
The lightest alloy option, with a closed two-bolt clamp and published weights from just 52g.
IX2AL Alloy Custom Stem
The IX2AL made with a custom length, angle, clamp size, anodised colour or engraving.
IX4AL Alloy Stem
A removable faceplate for compact, flared and aero-shaped drop handlebars. Approximately 75g at 80mm.
IX4AL Alloy Custom Stem
IX4AL handlebar compatibility with custom dimensions, colour or routing requirements.
Choose IX2AL when minimum weight matters and your handlebar fits safely through the closed clamp.
Choose IX4AL for a modern compact, flared or aero-shaped drop handlebar.
Why choose Darimo alloy?
A stem should fit your position, not force you to change it. Darimo offers lengths from 40mm to 130mm, four standard angles and fully custom configurations.
Each stem is CNC-machined from solid 7075 T6 aluminium. You get exceptionally low weight with more sizing, angle and colour freedom than most carbon stems.
Standard or Custom?
Choose Standard when your required length, angle, clamp sizes and finish are already available.
Choose Custom when you need:
- A non-standard length or angle
- A custom anodised colour
- Another handlebar or steerer diameter
- Personalised engraving
- Reinforced construction
- Selected internal cable routing
Darimo will confirm that your requested custom configuration can be manufactured before production begins.
Published weights
- IX2AL 40mm: From 52g
- IX2AL 80mm: Approximately 72g
- IX2AL 100mm: Approximately 82g
- IX4AL 80mm: Approximately 75g
- IX4AL internal routing 80mm: Approximately 81g
These are published weight benchmarks with a tolerance of approximately ±3%. Actual weight varies with length, angle, clamp sizes and custom or reinforced construction.
Specifications
- Construction: CNC-machined 7075 T6 aluminium
- Lengths: 40mm to 130mm in 10mm steps
- Angles: -6°, -12°, -17° or -25°
- Handlebar clamp: 31.8mm standard
- Steerer: 1 1/8 inch standard
- Standard finishes: Black or Natural Aluminium
- Hardware: Grade 5 titanium bolts
- Standard rider limit: 90kg
Additional anodised colours are available through the Custom Alloy options. An exact match to painted or separately anodised components cannot be guaranteed.
Reinforced construction is available for riders over 90kg. Provide your fully equipped riding weight when ordering.
Want the lightest possible Carbon stem instead of Alloy?
Check out the Darimo IX2 and IX4 Carbon Stems here.
Important installation note
Darimo stems must be installed with an accurate torque wrench and according to the instructions supplied with the selected model. Professional installation is recommended.
Frequently asked questions
What is the difference between IX2AL and IX4AL?
The IX2AL uses a lighter closed clamp. The IX4AL has a removable faceplate for compact and aero-shaped drop handlebars.
Which model suits a modern road bike?
Usually the IX4AL. Its removable faceplate works with a much wider range of shaped road handlebars.
What does Custom Alloy include?
Custom dimensions, anodised colours, alternative clamp sizes, engraving, reinforcement and selected routing requirements can be requested.
What happens after I order?
We will contact you to confirm the model, dimensions, colour, compatibility and rider weight before ordering from Darimo.
Can a custom stem be returned?
Custom configurations cannot normally be returned for a change of mind. All details are confirmed before production.
Get the stem your fit requires
Order now and we will confirm the exact configuration with you before production.