CubeAerium C:68X TT
The Aerium C:68X TT is the UCI-approved time trial version of Cube's Aerium, sharing the twin head tube and integrated cable routing of the triathlon frame but with UCI-compliant tube shapes. It is sold only as a frameset, supplied with Cube's TT cockpit and basebar. Tyre clearance is lower than on the triathlon Aerium C:68X.
- From
- €3,499€3,499€3,499
- Builds
- 1
- Sizes
- 4
- Frame weight
- —
Design sketch, generated from the manufacturer's photo
Our verdict
No overall score: there's no complete-bike price to rate
One of the more affordable ways into a UCI-approved frameset, sharing the twin head tube of Cube's tri bike and coming with cockpit and extensions. It gives up the tri version's in-frame hydration and some tyre clearance, and Cube publishes no drag figures for it, so it suits budget-minded time triallists more than triathletes.
Scored Oct 2026
AI-drafted from the specs on this page and reviewed before publishing. Scores are relative to every bike in the catalog when they were given, so they drop as newer bikes and parts raise the bar.
- Aero
- 76/100
- Frame
- 70/100
- Hydration & storage
- 50/100
- Fit
- 62/100
- Practicality
- 64/100
Aero claims and front-end integration
Carbon grade, weight and warranty
Not counted in the overall score for time-trial bikes: UCI rules limit integrated hydration and storage. Hydration and storage in the frame
Sizes and adjustment range
Travel, standard parts, servicing
Bike duel
Frame & platform
Frame & fork
- Frame material
- Carbon (C:68X)
- Fork material
- Carbon (Aerium C:68 TT)
- Max system weight
- 100 kg220.5 lb
- Frame sizes
- XS, S, M, L
- Colours
- carbon'n'prism
- Also available as
- Aerium C:68X (triathlon frame with integrated hydration, not UCI-legal)
Compatibility & standards
- Brake type
- Flat-mount disc
- Wheel size
- 700c
- Max tire width
- 27 mm
- Front axle
- 12x100 thru-axle
- Rear axle
- 12x142 thru-axle
- Cable routing
- Fully integrated
Hydration & storage
- Integrated hydration
- No
Fit & adjustability
- Aerobar system
- CUBE Aerium C:68X TT Cockpit System
- Seatpost type
- CUBE Aerium C:68 TT Aero seatpost
Aerodynamics
- Testing method
- CFD and wind-tunnel testing
Travel, maintenance & warranty
- Headset bearings
- FSA 1-1/8" integrated
- Sold via
- Through CUBE dealers
Photos
Design sketches
Builds & components
Highlighted rows differ between builds. Green marks the best value.
Aerium C:68X TT Frameset | |
|---|---|
| Overview | |
| Price (MSRP) | €3,499€3,499€3,499 |
| Weight | 4.3 kg9.5 lb |
| Type | Frameset |
| Notes | Frameset with CUBE Aerium C:68X TT cockpit (400 mm, 0 mm rise basebar), Profile Design 43 ASC Carbon extensions, seatpost and headset. Equipment list includes CUBE Concept Front Hydration and Concept Gear Unit. |
| Cockpit | |
| Aerobar system | CUBE Aerium C:68X TT Cockpit System |
| Basebar | CUBE Aerium C:68X TT Cockpit System |
| Basebar width | 400 mm |
| Extensions | Profile Design 43 ASC Carbon |
| Headset | FSA 1 1/8" integrated |
| Saddle & seatpost | |
| Seatpost | CUBE Aerium C:68 TT Aero |
Aerium C:68X TT price & value
Building up the Aerium C:68X TT Frameset
Included: Aerobar system, Basebar, Extensions, Headset, Seatpost.
Still to buy: Groupset, Crankset, Cassette, Chain, Brake calipers, Wheelset, Tires, Saddle, Pedals.
Ownership checklist
1 of 1 known checks pass, 6 not published by Cube. Why these checks
- ?
Threaded bottom bracket
- ?
UDH derailleur hanger
- ✓
Standard 12×142 mm rear axle
12x142 thru-axle
- ?
Works with mechanical shifting
- ?
Fits third-party aerobars
CUBE Aerium C:68X TT Cockpit System
- ?
Rear disc wheel compatible
- ?
Fit kept when packed
Aerium C:68X TT geometry
| XS | S | M | L | |
|---|---|---|---|---|
| Stack | 487 mm19.2″ | 498 mm19.6″ | 518 mm20.4″ | 540 mm21.3″ |
| Reach | 396 mm15.6″ | 405 mm15.9″ | 421 mm16.6″ | 442 mm17.4″ |
| Seat angle min | 78° | 78° | 78° | 78° |
| Seat angle max | 78° | 78° | 78° | 78° |
| Head tube angle | 72° | 72° | 72° | 72° |
| Head tube length | 74 mm2.9″ | 85 mm3.3″ | 106 mm4.2″ | 129 mm5.1″ |
| Effective top tube | 499 mm19.6″ | 511 mm20.1″ | 531 mm20.9″ | 557 mm21.9″ |
| Seat tube length | 535 mm21.1″ | 545 mm21.5″ | 566 mm22.3″ | 588 mm23.1″ |
| Chainstay | 408 mm16.1″ | 408 mm16.1″ | 408 mm16.1″ | 408 mm16.1″ |
| Wheelbase | 977 mm38.5″ | 990 mm39″ | 1,013 mm39.9″ | 1,041 mm41″ |
| BB drop | 78 mm3.1″ | 78 mm3.1″ | 78 mm3.1″ | 78 mm3.1″ |
| Basebar width | 400 mm15.7″ | 400 mm15.7″ | 400 mm15.7″ | 400 mm15.7″ |
Side view & pad range
Drawn to scale (how to read it).
How the geometry rides
The Aerium C:68X TT in size S against the middle size of 16 other bikes: tendencies from geometry, not a ride review (how to read this).
- Wheelbase990 mm39″
shortestlonger than 50% of 16 bikeslongest
- Chainstay408 mm16.1″
shortestlonger than 53% of 20 bikeslongest
Good to know
Design
It uses the same twin head tube concept as the triathlon Aerium, which Cube says reduces drag and crosswind buffeting.
SourceRacing
The frame is on the UCI approved list. Cube supplies it with a 0 mm-rise TT basebar.
SourceVersions
The TT frame differs from the triathlon Aerium C:68X: 408 mm chainstays instead of 410 mm, 27 mm instead of 30 mm maximum tyre width, and no in-frame hydration.
Source
Aerium C:68X TT FAQ
Is the Cube Aerium C:68X TT UCI legal?+
Yes. The Cube Aerium C:68X TT is UCI legal, so it can be raced in draft-illegal triathlon as well as UCI time trials.
How much does the Cube Aerium C:68X TT cost?+
Manufacturer prices (MSRP): €3,499 across 1 listed build: Aerium C:68X TT Frameset.
How much does the Cube Aerium C:68X TT weigh?+
The lightest complete build listed (Aerium C:68X TT Frameset) weighs 4.3 kg (9.5 lb).
What sizes does the Cube Aerium C:68X TT come in?+
4 sizes: XS, S, M and L.
What seat angle does the Cube Aerium C:68X TT have?+
78° effective seat tube angle.
Does the Cube Aerium C:68X TT have integrated hydration?+
The Cube Aerium C:68X TT has no integrated hydration system.
What is the tire clearance of the Cube Aerium C:68X TT?+
Up to 27 mm tires on 700c wheels.
Sources
- https://www.cube.eu/de-en/cube-aerium-c-68x-tt-frameset-carbon-n-prism/131110
- https://www.cube.eu/de-en/bikes/road/triathlon-time-trial/aerium
Cube Aerium C:68X TT data last updated · How the data is checked ·