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The Cube Aerium C:68X Triathlon Frameset is your edge in triathlons and time trials.
The Cube Aerium C:68X Triathlon Frameset is your edge in triathlons and time trials.
Cube

2025 Cube Aerium C:68X Triathlon Bike Frameset - Nebula/White

£3,999.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

2025 Cube Aerium C:68X Triathlon Bike Frameset - Nebula/White

Season:2025

Brand:Cube

Code:831500nebulaWHT

Engineered in collaboration with World Champion Lucy Charles-Barclay, the Cube Aerium C:68X is the ultimate triathlon frameset for speed and performance. Every feature has been meticulously designed, from its aerodynamic fork and integrated disc brakes to advanced hydration and storage systems. Tested extensively in wind tunnels and under real race conditions, this frameset delivers unparalleled speed, control, and adaptability. Trusted by champions, it’s now your turn to harness its power and innovation.

Optimised for Speed and Performance

The Aerium C:68X is the fastest frame Cube has ever produced. Designed for watt-saving aerodynamics and flexibility, it’s a game-changing machine for serious triathletes and time trial enthusiasts. With a lightweight, stiff frame and configurable features, you can fine-tune your setup to push your limits.

C:68X Carbon Fibre Technology

Premium C:68X® carbon combines high-modulus fibres with nano-infused resin for a lightweight, stiff, and durable frame. Manufactured using Cube’s Advanced Twin Mould process, ensuring perfect fibre placement and tailored strength.

Full Internal Cable Routing

Gear and brake cables are fully hidden, creating a sleek, aerodynamic look while reducing drag, improving durability, and simplifying maintenance.

Aero Cockpit System

Configurable cockpit options (Low or High setups) with extensive adjustments for armpads, saddle stack, and reach. Tailored to every rider’s need for speed, comfort, and endurance.

Twin Head Tube

The striking Twin Head Tube design reduces straight-line air resistance and improves stability in crosswinds, maximising speed and control.

Hydration System 2.0

Innovative hydration setup includes a bar-mounted system and a hidden frame-integrated bladder. Allows rehydration without breaking your aero tuck.

Modular Storage System

Designed for easy access to energy gels or bars without interrupting your ride. Customisable options keep fuel close at hand during long races.

Aero-Optimised Geometry

Perfected using wind tunnel testing, computational fluid dynamics, and athlete feedback to deliver unmatched speed, stability, and agility.

Front Derailleur Cover Plate

Offers flexibility for a 2x or 1x drivetrain setup, with a sleek aero cover to maintain performance when running a single chainring.

Built for Real-World Racing

The Aerium C:68X doesn’t just shine in the wind tunnel; it excels in race conditions. Its disc brake integration ensures reliable stopping power in any weather, and its extra storage options make it perfect for long-distance events. An enclosed compartment near the bottom bracket accommodates a hydration bladder or essential tools like a CO2 inflator and spare tube, always accessible without compromising aerodynamics.

  • Champion-Driven Design: Co-developed with Lucy Charles-Barclay for maximum performance and adaptability.
  • Ultimate Aerodynamics: Wind tunnel-tested geometry and innovative features ensure minimal drag and optimal speed.
  • Unmatched Customisation: Adjustable cockpit, drivetrain options, and integrated hydration/storage systems tailored to your needs.
  • Premium Craftsmanship: Lightweight, stiff, and durable thanks to Cube’s industry-leading C:68X® carbon and Advanced Twin Mould technology.

Unlock Your Hidden Advantage

The Cube Aerium C:68X Triathlon Frameset is your edge in triathlons and time trials. With its combination of cutting-edge aerodynamics, premium materials, and race-ready features, it’s the ultimate choice for athletes who demand the best.

Technical Information
  • Frame
    Aerium C:68X® Monocoque Advanced Twin Mold Technology, Twin Head Tube, Full Internal Cable Routing, Flat Mount Disc, 12x142mm, AXH
  • Size
    XS, S, M, L
  • Rigid Fork
    Aerium C:68X®, Integrated Cable Routing, Flat Mount Disc, 12x100mm
  • Headset
    ACROS integrated, Top 1 1/8", Bottom 1 1/4"
  • Integrated Bar/Stem
    CUBE Aerium C:68X® Cockpit System
  • Bar Extensions
    Profile Design 43 ASC Carbon
  • Handlebar Tape
    ACID Bartape RD
  • Seatpost
    CUBE Aerium C:68 Aero
  • Equipment
    CUBE Concept Front Hydration / Concept Gear Unit
  • Colour
    nebula´n´white
  • Weight
    5.1 kg
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

GEOMETRY

SizeXSSML
Seat Tube535mm545mm566mm588mm
Top Tube Horizontal499mm511mm531mm557mm
Seat Angle78°78°78°78°
Head Tube Angle72°72°72°72°
Chainstays410mm410mm410mm410mm
Head Tube74mm85mm106mm129mm
Wheelbase979mm992mm1015mm1043mm
BB-Height to Hub78mm78mm78mm78mm
Protrusion Height - 80mm790mm801mm821mm824mm
Reach395mm405mm421mm442mm
Stack487mm497mm517mm539mm

ERGONOMICS

SizeXSSML
Length Seat Post350mm350mm350mm350mm
Angle Stem-18°-18°-18°-18°
Crank Length170mm170mm170mm172.5mm
Diameter Tyre Maximum693mm693mm693mm693mm
Width Tyre Maximum30mm30mm30mm30mm
Stem Length81mm81mm81mm81mm
Handlebar Width400mm400mm400mm400mm

All values are given in millimetres or degrees.
Professional Opinion
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