Monday | 9.00am - 5.30pm |
Tuesday | 9.00am - 5.30pm |
Wednesday | 9.00am - 5.30pm |
Thursday | 9.00am - 5.30pm |
Friday | 9.00am - 5.30pm |
Saturday | 9.00am - 5.30pm |
Sunday | 10.00am - 4.00pm |
Bank Holidays | 10.00am - 4.00pm |

2025 Cube Aerium C:68X Slt Carbon Time Trial Bike in Blue
Developed in close collaboration with World champion Lucy Charles-Barclay, the Aerium C:68X SLT frame's premium C:68X® carbon construction incorporates flexible and adaptable hydration and storage options, including the ability to add up to two hydration systems for longer races. The CUBE cockpit puts everything you need at your fingertips, thanks to a wide range of adjustment. A Newmen STREEM Aero/Sprint TT 60/80 Vonoa wheelset – shod with Continental's Grand Prix 5000 TT tyres and aero valves – is the perfect aero match for our wind tunnel-tested frame, giving you extra watts to translate into faster forward progress. And Shimano's inimitable Dura-Ace Di2 groupset – with 2x12 gearing, built-in powermeter and hydraulic disc brakes – delivers precise shifts and on-demand braking with perfect precision. And, should you wish to revert to 1x gearing without a front derailleur, there's a cover for the mounting area to preserve the frame's aero performance.
Developed in close collaboration with CUBE athlete and World champion Lucy Charles-Barclay, the Aerium C:68X can rightly claim its title as the fastest frame we've ever made. Every detail, from the aero fork design, disc brake integration and in-frame hydration and storage systems has been designed with zero compromise, tested in the wind tunnel and then tested again under pressure, in race conditions. Lucy has full confidence in the frame and its configurable storage and hydration and now you can, too.
All UK Mainland Bike Deliveries Over £999 - Free Bike orders are sent via TNT/FedEx with estimated delivery within 1 working day after quoted dispatch time (For Scottish Highlands, Northern Ireland, Isle of Man and the Channel Islands deliveries please allow an additional 1-4 working days).Bike orders under £999 will incur a £20 delivery fee.
Free Delivery On Orders Over £50.00 - When you spend more than £50.00 at 99 Bikes deliveries to a UK mainland address will be free (excludes bikes & large items).Certain regions and territories of the UK will incur additional charges, details of which can be found on our delivery page.
Click & Collect Orders -Please be aware Click & Collect orders may take some time to fulfil. We advise not to travel to your chosen store until you have been notified that your order is ready for collection.
At 99 Bikes our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you aren't, we offer a 30 day online return policy* in which you can receive a full refund. Any item including bikes (with the exception of food) can be returned to us for any reason provided it is received by us in an unused and resalable condition in or with its original packaging which must be undamaged.
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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"
Integratedbar/stem - CUBE Aerium C:68X® Cockpit System
Bar extensions - Profile Design 43 ASC Carbon
Handlebar tape - ACID Bartape RD
Rear derailleur - Shimano Dura Ace Di2 RD-R9250-D, 12-Speed
Front derailleur - Shimano Dura Ace Di2 FD-R9250-F, Braze-On
Shifters - Shimano Dura Ace Di2 SW-R9160 TT
Shifters/brakelevers - Shimano Dura Ace Di2 ST-R9180
Brake - Shimano Dura Ace BR-R9270, Hydr. Disc Brake, Flat Mount (140/140)
Bottom Bracket - Shimano SM-BB71-41B, 86mm Pressfit
Crankset - Shimano Dura Ace FC-R9200P Power Meter, 54x40T
Crankset chainring sizes - 54X40T
Cassette - Shimano Dura Ace CS-R9200, 11-30T
Number of gears - 24
Chain - Shimano CN-M9100
Wheelset - Newmen Streem TT.80 VONOA , 15/18 Carbon Spokes, 12x100mm/12x142mm, Tubeless Ready
Tires - Conti Grand Prix 5000 TT, 28-622
Saddle - Selle Italia Watt SF Magnesium
Seatpost - CUBE Aerium C:68 Aero
Dropper Seatpost - NO
Net weight (kg) - 9.9
Gross weight (kg) - 21.5