CUBE AERIUM C:68X SLX Aero TT Bike 2026

£7,999.00

The Cube Aerium C:68X SLX Aero TT Bike is modelled on triathlete Lucy Charles-Barclay’s World Championship-winning machine, built for uncompromising speed and endurance.

Delivery

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Cycle to Work – Save up to 42%

Spread the cost of your new bike and save up to 42% through the Cycle to Work scheme. We accept all major providers including Cyclescheme, Green Commute Initiative, Bike2Work and more. Check with your employer for eligibility.

Free Delivery on all bikes

Complimentary standard delivery on all bikes to UK mainland addresses. Orders typically arrive within 2–5 working days. A signature is required on delivery. When you receive your bike all you'll need to do is unpack it, attach your pedals, turn the handlebars and ride.

Premier Delivery

Upgrade to Premier Delivery at checkout for a nominated day, extended assembly and in-home handover by a trained technician. Available on eligible bikes across UK mainland.

Built, checked, tuned & tested

All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.

All bikes collected from our shop, are built, tested and ready to ride.

Pedals & accessories

Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.

If you require any assistance please contact our Customer Care team

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Product Details

Cube AERIUM C:68X SLX Aero TT/Triathlon Bike 2026

The Cube Aerium C:68X SLX Aero TT Bike is modelled on triathlete Lucy Charles-Barclay’s World Championship-winning machine, built for uncompromising speed and endurance. Designed with configurable hydration and storage options hidden behind aero hatches, it allows riders to run up to two integrated hydration systems, making it an ideal choice for long-distance racing where self-sufficiency is key.

Cube Aerium C:68X Aerodynamics and Components

Equipped with a Newmen Streem Aero/Sprint TT 60/80 Vonoa wheelset fitted with Continental Grand Prix 5000 TT tyres and aero valves, the bike delivers rapid acceleration, aerodynamic efficiency, and reliable grip through corners. The Cube C:68X cockpit system offers a wide range of aero bar adjustments, ensuring every rider can achieve an optimal aerodynamic position.

Cube Aerium Drivetrain and Power

A SRAM Force AXS 2x12 drivetrain provides precise electronic shifting, while the built-in power meter ensures riders can accurately monitor and manage effort. This combination delivers smooth, reliable performance in demanding race conditions.

Cube Frame and Design

Crafted from Cube’s premium C:68X carbon, the Aerium C:68X SLX is the fastest frame Cube has ever produced. Developed in close collaboration with Lucy Charles-Barclay, the frame features an aero fork, disc brake integration, and in-frame hydration and storage systems. Wind tunnel tested and proven in competition, it represents the pinnacle of Cube’s aerodynamic innovation.

Features

Frame: Aerium C:68X Monocoque Advanced Twin Mold Technology, Twin Head Tube, Full Internal Cable Routing, Flat Mount Disc, 12x142mm, AXH
Fork: Aerium C:68X, Integrated Cable Routing, Flat Mount Disc, 12x100mm
Headset: ACROS Integrated, Top 1 1/8", Bottom 1 1/4"
Handlebar: CUBE Aerium C:68X Cockpit System
Bar extensions: Profile Design ASC Pro Carbon
Handlebar tape: ACID Bartape RC 2.5
Rear derailleur: Sram Force AXS E1, 12 speed
Front derailleur: Sram Force AXS E1
Shifters: Sram Red eTap Blips
Shifters/brake levers: Sram Red eTap Clics
Brakes: Sram S-900 Aero HRD (160)
Bottom Bracket: Sram DUB Road, 86mm Pressfit
Crankset: Sram Force E1 Power Meter, Dub, 50x37T
Crankset chainring sizes: 50x37T
Cassette: Sram Force E1 XG-1270, 10-33T
Chain: Sram Force E1
Wheelset: Newmen Streem S.60/TT.80 VONOA Carbon, 15/18 Carbon Spokes, 12x100mm/12x142mm, Tubeless Ready
Tyres: Conti Grand Prix 5000 TT, 28-622
Saddle: Selle Italia Watt SF Magnesium
Seatpost: CUBE Aerium C:68 Aero

Specifications

Model: AERIUM C:68X SLX
Battery [Maker]: SRAM
Bottom Bracket [Maker]: SRAM
Bottom Bracket Standard: BB86/BB92
Brakes [Kind]: Hydraulic Disc
Brakes [Maker]: SRAM
Brakes [Model]: S-900 Aero HRD
Cassette [Gearing]: 10-33
Cassette [Maker]: SRAM
Cassette [Model]: Force XG-1270
Chain [Maker]: SRAM
Chain [Model]: Force E1
Chainring [Gearing]: 50–37
Crank [Maker]: SRAM
Crank [Model]: Force E1 Power Meter DUB
E-Bike: No
Family: Aerium
FD [Maker]: SRAM
FD [Model]: Force AXS E1
Fenders Mounts: No
Fork [Axle Type]: 12x100mm
Fork [Brake Type]: Disc
Fork [Maker]: CUBE
Fork [Material]: Carbon
Fork [Model]: Aerium C:68X
Fork [Wheel Size]: 700c
Frame [Hanger Standard]: Brand-Specific
Frame [Material]: Carbon
Frameset: No
Gearing [Configuration]: 2x
Gearing [Kind]: Conventional
Gender: Unisex
Handlebar [Kind]: Aero
Handlebar [Maker]: CUBE
Handlebar [Material]: Carbon
Handlebar [Shape]: Aero bar
Headset [Maker]: Acros
Headset [SHIS]: IS41/28.6
Headset [Upper Headset Fit]: 1-1/8"
Power Meter [Maker]: SRAM
Power Meter [Model]: Force AXS Power Meter
Rack Mounts: No
RD [Maker]: SRAM
RD [Model]: Force AXS E1
Saddle [Maker]: Selle Italia
Seatpost [Kind]: Rigid
Seatpost [Maker]: CUBE
Seatpost [Material]: Carbon
Shifters [Maker]: SRAM
Shifters [Model]: Red eTap Blips
Shifting: Electronic
Stem [Maker]: CUBE
Suspension Configuration: Rigid
Tires [Maker]: Continental
Wheels [Configuration]: Front+Rear
Wheels [Kinds]: Tubeless Ready
Wheelset [Maker]: Newmen
Wheelset [Material]: Carbon
Wheelset [Model]: Streem S.60/TT.80 VONOA
Product code: 1956661 / 54293693727066

Size Guide

Size	XS	S	M	L	XL
Seat Tube	430	460	490	510	540
Top Tube Horizontal	522	537	550	575	592
Seat Angle (°)	75.5	74.7	73.9	73	73
Head Tube Angle (°)	69	70	71.5	72	72.5
Chainstay Length	440	440	440	442	442
Head Tube Length	102	124	155	174	197
Wheelbase	1043	1044	1046	1048	1060
Stack	520	544	579	599	623
Reach	388	388	392	393	402