Bottle Cage Kit, with Bontrager bottle, for all Carboxtrem couplings.
€175,00
Composites and Carbon Fibers · Ref. SKU110022062023-0
Upper Steering Cover for Gemini Handlebar
€65,00VAT included · Shipping separate
Top Cap for the Gemini Handlebar, designed specifically so you can tighten the headset spider directly. Made from high-quality carbon fibre, this part guarantees durability and strength while also offering an attractive, functional solution...
I'd rather check my measurements first- Made from your measurementsWe fit the part to your bike and your position, not the other way round.
- Ships in 24-72 hMainland Spain €12. If it's made to measure, we'll give you the lead time when you confirm.
- We advise you firstSend us your bike and your measurements on WhatsApp and we'll tell you what suits you.
Top Cap for the Gemini Handlebar, designed specifically so you can tighten the headset spider directly.
Made from high-quality carbon fibre, this part guarantees durability and strength while also offering an attractive, functional solution for your bike.
The Top Cap for the Gemini Handlebar allows precise adjustment of the headset bolt, letting you tighten the headset to up to 5 Nm.
Standout features:
- Premium material: Made from solid carbon fibre, delivering light weight and superior strength.
- Compatibility: Designed exclusively for Gemini MTB handlebars.
- Personalised fit: Available in two models with -15º and -25º angles, to suit each rider's preference.
- Simple installation: Its design allows easy fitting and adjustment of the headset clamp bolt.
The Gemini Handlebar Top Cap stands out not only for its function but also for its elegant design, complementing the look of any mountain bike.
Whether you prefer a -15º angle for a more upright position or -25º for a more aggressive stance, we have the ideal option for you.
Optimise your riding and take your performance to the next level with the Top Cap for the Gemini Handlebar, an essential accessory for every keen cyclist.
Frequently asked questions
What is it for?
It lets you tighten the headset spider directly, with precise adjustment of the bolt up to 5 Nm.
What material is it made from?
Solid carbon fibre, which delivers light weight and superior strength.
What is it compatible with?
It is designed exclusively for Gemini MTB handlebars.
Spec sheet
- Product
- Upper Steering Cover for Gemini Handlebar
- Type
- Composites and Carbon Fibers
- Reference
- SKU110022062023-0
- OFFSET | DROP
- -12º · -25º
- Weight
- 1.0 kg
- Manufacturing
- Made to measure, one at a time
- Shipping
- Mainland Spain €12 · Elsewhere, ask us
CarboXtrem, leaders in 3D printing for high performance cycling
At CarboXtrem we specialise in 3D printed cycling components for people who don't settle for standard.
We design and make Aero aerobars, grips, saddles and other key parts to the millimetre, with materials such as carbon fibre and EPU 41 resin, used by leading brands such as Specialized and adidas.
Every part is fitted to your body, your bike and your discipline (road, triathlon, gravel). No generic sizes. No pain. Just performance.
How does your order work with CarboXtrem?
STEP 1: Buy online and talk to us directly
After your purchase, we contact you on WhatsApp to start the custom process. No complicated forms, no waiting.
STEP 2: We guide you through taking your measurements
We send you visual instructions to gather the data we need for the product you bought.
For aerobars:
- Height and weight
- Your arm measurement from your bike fit
- Exact measurements of your handlebar
The whole process explained step by step with pictures.
STEP 3: We check everything and make it precisely
We compare your data against our database of models. We've made parts for almost every model and brand out there, and for most body types.
If something doesn't add up, we tell you before making it.
Then we make your product 100% to measure with Carbon3D technology (aerobars, grips, saddle, and so on).
⏱ Manufacturing time: 2 weeks.
STEP 4: Receive it, fit it and ride
Express shipping in 24–48 h.
You have support on WhatsApp or by video call to help you fit your kit properly.
We also send you installation videos.
3D + carbonPrinted mesh and hand-laid carbon
We advise you firstWe tell you what suits you and what doesn't
One at a timeNo part is off the shelf
Direct supportYou talk to the person who makes it
★★★★☆ 4,5
4.5 out of 5 on Trustpilot, from 100 verified customer reviews.
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Not sure it fits you?
Send us a photo of your bike and whatever measurements you have. We'll tell you what works and what doesn't, even if it ends with you not buying anything.