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Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
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Description
Velobike Altias Stem - Argon18 Electron PRODeveloped in collaboration with AusCycling and Cycling Canada for the Paris Olympic Games. Optimised stiffness to weight ratio to achieve the best possible direct mount cockpit under high intensity accelerations. Furthermore an in depth aerodynamic study was undertaken to ensure airflow around the leading edge of the stem and headtube junction maintained a fluid and attached air flow. Note: Direct mount screws are sold separately. please refer to the
Developed in collaboration with AusCycling and Cycling Canada for the Paris Olympic Games.Optimised stiffness to weight ratio to achieve the best possible direct mount cockpit under high intensity accelerations. Furthermore an in-depth aerodynamic study was undertaken to ensure airflow around the leading edge of the stem and headtube junction maintained a fluid and attached air flow.
Note: Direct mount screws are sold separately. please refer to the user manual below to identify your screw length requirements and order the screws here.
GEOMETRY
Please view the Velobike Altias Stem - Argon18 User Manual & Geometry Guide for selecting the correct stem size for your requirements.
The user manual includes:
STACK AND REACH INFORMATION
Handlebar reach limits (to 100mm in front of the axle)
Stem weights
Direct mount bolt length requirements
Installation instructions
Installation torque specifications
Spacer heights and its effect on reach and stack dimensions
SPECIFICATIONS
Compatible with the Argon18 Electron Pro (RIO and TKO) Sprint and Pursuit Framesets
ISO 4210-5:2014 certified (tested to 2x the ISO requirements)
Aero design developed using CFD software
Bar clamp diameter: 31.8mm
Bar clamp width: 49mm
Recommended to use copper grease on screw threads (grease not included)
Direct mount screws sold separately
INCLUDED
1x Stem (of selected size)
1x Faceplate
4x Faceplate screws
OPTIONAL EXTRAS
Stainless Steel Mounting Screws
Velobike Altias Sprint Handlebar
Velobike Altias Integrated Handlebar Faceplates
Direct mount screws
Stem spacer sets
Replacement faceplate screws
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.6 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Very Comfortable Shoes
Size: 11, Color: Black Full Grain
Were purchased as a gift and the wearer says they are the most comfortable shoes he has
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 28, 2025
★★★★★ 5
Great shoes
I like these shoes they are comfortable, and look great. Good quality, it fits to its size.
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Reviewed in the United States on May 19, 2025
★★★★★ 1
Mal presentado
Size: 9, Color: Black Full Grain
Un zapato llego con cosido defectuoso
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Reviewed in the United States on October 29, 2025
★★★★★ 5
Comfortable
Size: 11.5, Color: Black Full Grain
Fit great very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 16, 2025
★★★★★ 5
Nice shoes!
Size: 11, Color: Black Full Grain
I bought them in black and I like them so much I will be buying the brown soon. They fit true to size and are comfortable and stylish. I like the clean simplicity. They're basically a dressy sneaker which is perfect for my job's 'dress code'. Yet they're stylish enough to be worn weekends or a night out. They seemed just a touch stiff out of the box but IMO that's completely normal and fine - after just a couple days of wearing them they are breaking in nicely. No complaints on that. They seem to be of very high quality and I'm very happy with them.
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Reviewed in the United States on February 8, 2026