Cube Litening AIR C:68X geometryRoad · 2026 · 6 sizes, from 50 cm to 60 cm
The Cube Litening AIR C:68X is a road bike available in 6 sizes, from 50 cm to 60 cm. Stack ranges from 514 to 594 mm and reach from 389 to 405 mm. Its geometry is low and long, with a racing fit. All sizes share 410 mm chainstays.
What size Litening AIR C:68X do I need?
Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.
Enter your stack and reach to see which size fits you best.
Geometry chart by size
Measurements in mm and degrees, as published by Cube. The ones that matter most for choosing a size are in bold.
| Size | 50 cm | 52 cm | 54 cm | 56 cm | 58 cm | 60 cm |
|---|---|---|---|---|---|---|
| Stack | 514 | 524 | 542 | 563 | 580 | 594 |
| Reach | 389 | 389 | 390 | 398 | 403 | 405 |
| Effective top tube | 527 | 537 | 550 | 565 | 580 | 592 |
| Head tube length | 107 | 117 | 137 | 157 | 177 | 192 |
| Head angle | 72.2° | 72.5° | 73.0° | 73.5° | 73.5° | 73.5° |
| Chainstay length | 410 | 410 | 410 | 410 | 410 | 410 |
| Wheelbase | 981 | 981 | 984 | 995 | 1,005 | 1,011 |
| Seat tube (method not stated) | 440 | 460 | 480 | 500 | 520 | 540 |
| Seat angle (method not stated) | 75.0° | 74.2° | 73.5° | 73.5° | 73.0° | 72.5° |
Source: Cube official website · data from 11 Nov 2026. Spot a mistake?
Stack and reach of every size
Higher means a taller front end; further right means a longer reach. The blue dot is your search.
Character of each size
Compared with other road bikes. Further right means more of that quality.
Bikes with similar geometry (size 54 cm)
The closest size of other road models, by stack and reach.
Frequently asked questions
What size Litening AIR C:68X do I need?
It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 514/389 mm in size 50 cm to 594/405 mm in size 60 cm). The size finder on this page shows the closest size and the stem and spacers you would need.
What are the stack and reach of the Litening AIR C:68X in size 54 cm?
Stack of 542 mm and reach of 390 mm, with an effective top tube of 550 mm and a head angle of 73.0°.
Is the Litening AIR C:68X a racing or an endurance bike?
Racing. In size 54 cm its stack-to-reach ratio is at percentile 23 of road bikes: a low, stretched position.
Does it have the same geometry as the Endurace CFR?
In size 54 cm, yes: same stack and reach. If one already fits you, the same size of the other will put you in the same position.