(949) 535-3742
Gemini Alzir One-Piece Road Handlebar
April 13, 2026Price range: $1,244.99 through $1,339.98
Gemini’s ultra-lightweight, carbon, aero one-piece handlebar
THE WIDTH OPTIONS BELOW ARE MEASURED FROM THE HOODS
We offer free shipping on orders in the U.S. of $75 or more.
We also ship fast! In stock orders placed before 4 pm PT almost always ship the same day!
Shop with confidence! We offer a simple, 30-day policy where you can return new, unused items for a refund, exchange or store credit.
Gemini Alzir One-Piece Road Handlebar
The Gemini Alzir One-Piece Road Handlebar is an ultra lightweight and aerodynamic cockpit built for riders who want a true integrated bar and stem. Designed and made in Barcelona, it uses a full carbon construction and a sleek shape to place riders in an efficient aerodynamic position. Gemini also offers a Performance Layup that boosts strength and stiffness compared to the Lightweight Layup. This option adds about 90 grams for riders who want or need extra rigidity. Whether you race, train or want a cleaner faster build, this handlebar delivers.
The Alzir routes cables internally through the bar to create a clean race ready look. It works with modern frames that support full internal routing when used with the correct spacers.
Product Details
Key Features of the Gemini Alzir Road Handlebar
- One-Piece Integrated Design: Combines bar and stem for maximum stiffness, reduced weight and a clean look.
- Aerodynamic Shape: CFD optimized, streamlined profile minimizes drag and is designed to position riders in the most aerodynamic stance while remaining comfortable.
- Beautiful Craftsmanship: A unibody design of carbon fiber, handmade in Barcelona, Spain.
- Full-Internal Cable Routing: When coupled with the appropriate spacers, these bars fit frames that route cables through the bar, stem and headset for a fully hidden setup.
Compatibility
This handlebar is compatible only with fully internal cable routing on select frames, so long as the correct spacers are selected. See Compatibility tab for more information.
Considerations
Gemini offer the Gemini Alzir One-Piece Road Handlebar in two carbon layups, with the Lightweight version being better suited for riders looking to minimize weight and maximize comfort. The lightweight version also comes with a rider weight limit of 198lbs. Riders who need a higher limit or sprint hard should choose the Performance layup for extra strength and stiffness.
Advice From Our Staff
We believe the Gemini Alzir suits riders who want an ultra-lightweight, aero cockpit. Gemini focuses on cutting edge craftsmanship, and it shows in their products. It is a premium, carbon barstem that would be a great upgrade for many riders if their budget allows.
Gemini Alzir Options
Width (measured from hoods): 38 cm
Stem Length: 100 mm | 110 mm
Carbon Layup: Lightweight | Performance
Finish: Matte | Gloss
Spacer Kits: Colnago C68 | Colnago V5RS | ENVE Melee/Fray | Pinarello Dogma F | Specialized Tarmac SL8
Compatibility
Steerer: This one-piece handlebar is compatible with 28.6 mm steerer tubes.
Framesets: With the appropriate optional headset bearing covers, this handlebar is compatible with the following fully-internal framesets:
- Colnago C68
- Colnago V5RS
- ENVE Melee/Fray
- Pinarello Dogma F
- Specialized Tarmac SL8
Computer Mount: This handlebar is compatible with the Gemini Vostok Computer Mount.
If you have questions on compatibility, please feel free to contact us!
Specs
- Materials: MR70 Carbon Fiber and Titanium Hardware
- Carbon Layup: Lightweight | Performance
- Finish: Matte | Gloss
- Stem Length: 100 mm | 110 mm - measured from steerer tube center line to center of bar
- Bar Width: 38 cm | 40 cm | 42 cm - measured center to center at the hoods
- Drops Width: 40.8 cm | 42.8 cm | 44.8 cm - measured center to center at the drops
- Bar Reach: 75 mm
- Bar Drop: 125 mm
- Stem Angle: -9°
- Flare (drops): 3°
- Weight: 243.4 grams (110 MM/38 CM, Lightweight Layup, Matte Finish)
- Max Rider Weight: 198 lbs (Lightweight) | 264 lbs (Performance)
In the Box
- Gemini Alzir Handlebar
- Forged Carbon topcap assembly including titanium bolt
- 2 x Titanium Stem Bolts
- Spacers: 2 x 5 mm, 2 x 10 mm
Q&A
Have a question about this? Ask the staff.
OTHER CUSTOMERS ALSO VIEWED
-
SEKA Rapier One-Piece Road HandlebarPrice range: $429.00 through $458.00SEKA's wind tunnel tested, carbon, one-piece handlebar THE WIDTH OPTIONS BELOW ARE MEASURED FROM THE HOODS -
One of the lightest aero one-piece handlebars in the world. Only 250 grams THE SIZE OPTIONS BELOW ARE STEM LENGTH MEASUREMENTS AND WIDTH MEASUREMENTS FROM THE DROPS -
ENVE SES Aero Pro One-Piece Handlebar$1,200.00Ultralight one-piece carbon handlebar refined by Tadej Pogačar THE SIZE OPTIONS BELOW ARE STEM LENGTH MEASUREMENTS AND WIDTH MEASUREMENTS FROM THE HOODS -
Beautiful, lightweight one-piece carbon barstem for integrated cable routing THE SIZE OPTIONS BELOW ARE STEM LENGTH MEASUREMENTS AND WIDTH MEASUREMENTS FROM THE HOODS
THIS PRODUCT IS FREQUENTLY BOUGHT WITH
-
Gemini Vostok Computer Mount$109.99Integrated computer mount for Gemini one-piece handlebars -
Black Inc Premium Bar Tape$43.002.8 mm thick road bar tape with MicroGel backing -
Gemini headset bearing covers for Colnago, ENVE, Pinarello and Specialized Images are approximate only, actual product may vary -
The lightest Stealth saddle in PRO's lineup at only 130 grams
There are no reviews yet.