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Cube Aerium C:68X TT vs Ridley Dean Fast Disc
Pick up to 4 bikes. Rows line up component by component. Highlighted rows differ, and green marks the best value where lower or higher is clearly better.
Key differences
- The Cube Aerium C:68X TT starts €1,500 cheaper (€3,499 vs €4,999 for the Ridley Dean Fast Disc).
- Tire clearance: up to 27 mm on the Cube Aerium C:68X TT vs 32 mm on the Ridley Dean Fast Disc.
- The Cube Aerium C:68X TT comes in 4 sizes, the Ridley Dean Fast Disc in 3.
Cube Aerium C:68X TT
Ridley Dean Fast Disc
| CubeAerium C:68X TT | RidleyDean Fast Disc | |
|---|---|---|
| Overview | ||
| Brand | Cube | Ridley |
| Build | Aerium C:68X TT Frameset | Dean Fast Disc frameset |
| Build 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. | Ridley sells the Dean Fast as a frameset only (frame, fork, Forza TTT basebar and Forza Aero seatpost); colours are chosen in Ridley's configurator. |
| Price (MSRP) | €3,499€3,499€3,499 | €4,999€4,999£4,499 |
| Bike weight | 4.3 kg9.5 lb | — |
| Model year | 2026 | 2024 |
| Generation | — | Dean Fast (disc, 2023) |
| Launched | — | 2023-08 |
| Discipline | Time trial | Time trial |
| UCI legal | Yes | Yes |
| Verdict (out of 100) | ||
| Aero | 76 | 86 |
| Frame | 70 | 84 |
| Hydration & storage | 50 | 45 |
| Fit | 62 | 48 |
| Practicality | 64 | 62 |
| Frame & fork | ||
| Frame material | Carbon (C:68X) | Carbon (Ridley Elite Series, Toray 60T/50T/30T/24T mix) |
| Fork material | Carbon (Aerium C:68 TT) | Carbon (Noah Fast Disc fork, 60T-40T-30T HM UD, in-mould F-Surface) |
| Frame weight | — | 1,250 g2.76 lb |
| Fork weight | — | 460 g16.2 oz |
| Weight measured on | — | Size M, Ridley claim reported by BikeRadar; basebar 341 g |
| Max system weight | 100 kg220.5 lb | — |
| Frame sizes | XS, S, M, L | S, M, L |
| Colours | carbon'n'prism | — |
| Also available as | Aerium C:68X (triathlon frame with integrated hydration, not UCI-legal) | — |
| UCI frame approval | — | UCI-approved as 'Dean Fast Disc' (frame and fork code RIDLEY-DEAN), approved 01.05.2023; the list (version 2026.10.02) names only size M (1) |
| Compatibility & standards | ||
| Brake type | Flat-mount disc | Hydraulic disc (flat mount) |
| Wheel size | 700c | 700c |
| Max tire width | 27 mm | 32 mm |
| Bottom bracket standard | — | PF30 (press-fit) |
| Front axle | 12x100 thru-axle | 12x100 thru-axle |
| Rear axle | 12x142 thru-axle | 12x142 thru-axle |
| Drivetrain compatibility | — | Electronic groupsets only; Universal Derailleur Hanger (UDH) |
| Mechanical shifting possible | — | No |
| 1x compatible | — | Yes |
| Max chainring | — | 60T |
| Front derailleur mount | — | Removable bolt-on hanger with two clamp options (for 53-40T or 60-47T rings); a cover cap replaces it on 1x builds |
| Cable routing | Fully integrated | Fully internal |
| Hydration & storage | ||
| Integrated hydration | No | No |
| Integrated storage | — | No |
| Bottle mount locations | — | Down tube, with two cage positions: a higher one for training access and a lower one for racing |
| Fit & adjustability | ||
| Aerobar system | CUBE Aerium C:68X TT Cockpit System | Forza TTT integrated basebar (110 mm stem, 400 mm c-c) supplied with the frameset; the stem drops into the head tube |
| Seatpost type | CUBE Aerium C:68 TT Aero seatpost | Forza Aero seatpost (350 mm) |
| Aerodynamics | ||
| Testing method | CFD and wind-tunnel testing | CFD simulations optimised for about 55 km/h, then validated in the Bike Valley wind tunnel |
| Tube profile | — | F-Tubing (truncated NACA profiles) with F-Surface Plus grooves on frame and fork; uses the UCI 8:1 tube ratio and compensation triangles |
| Travel, maintenance & warranty | ||
| Headset bearings | FSA 1-1/8" integrated | — |
| Derailleur hanger | — | UDH (SRAM Universal Derailleur Hanger); the front derailleur hanger is removable and can be swapped for a cover on 1x builds |
| Proprietary parts | — | Forza TTT integrated basebar/stem, Forza Aero seatpost, removable front-derailleur hanger and cover |
| Frame warranty | — | Lifetime warranty after registration (Ridley) |
| Sold via | Through CUBE dealers | Ridley dealers and online ordering with pick-up at a dealer |
| Cockpit | ||
| Aerobar system | CUBE Aerium C:68X TT Cockpit System | — |
| Basebar | CUBE Aerium C:68X TT Cockpit System | Ridley Forza TTT integrated basebar |
| Basebar width | 400 mm | 400 mm |
| Weight | — | 341 g12 oz |
| Notes | — | Integrated 110 mm stem |
| Extensions | Profile Design 43 ASC Carbon | — |
| Headset | FSA 1 1/8" integrated | — |
| Saddle & seatpost | ||
| Seatpost | CUBE Aerium C:68 TT Aero | Ridley Forza Aero |
| Notes | — | 350 mm length |
| Geometry (smallest – largest size) | ||
| Sizes | XS, S, M, L | S, M, L |
| Stack | 487–540 mm19.2–21.3″ | 495–518 mm19.5–20.4″ |
| Reach | 396–442 mm15.6–17.4″ | 373–411 mm14.7–16.2″ |
| Seat angle min | 78° | 74.5° |
| Seat angle max | 78° | 74.5° |
| Head tube angle | 72° | 71.5–72° |
| Head tube length | 74–129 mm2.9–5.1″ | 90–110 mm3.5–4.3″ |
| Effective top tube | 499–557 mm19.6–21.9″ | 510–555 mm20.1–21.9″ |
| Seat tube length | 535–588 mm21.1–23.1″ | 500–540 mm19.7–21.3″ |
| Chainstay | 408 mm16.1″ | 405 mm15.9″ |
| Wheelbase | 977–1,041 mm38.5–41″ | 964–1,001 mm38–39.4″ |
| BB drop | 78 mm3.1″ | 75 mm3″ |
| Standover | — | 763–786 mm30–30.9″ |
| Wheel size | — | 700c |
| Stem length | — | 110 mm4.3″ |
| Basebar width | 400 mm15.7″ | 400 mm15.7″ |
Geometry overlay
Pick a size for each bike to see frames and arm-pad ranges on top of each other.
Drawn to scale (how to read it).