KTM X-Life Action geometryUrban · 2027 · 4 sizes, from S to XL
The KTM X-Life Action is a urban bike available in 4 sizes, from S to XL. Stack ranges from 600 to 650 mm and reach from 397 to 416 mm. Its position sits between racing and endurance. All sizes share 440 mm chainstays.
What size X-Life Action 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 KTM. The ones that matter most for choosing a size are in bold.
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack | 600 | 617 | 635 | 650 |
| Reach | 397 | 401 | 406 | 416 |
| Head tube length | 137 | 155 | 174 | 190 |
| Head angle | 70.5° | 70.5° | 70.5° | 70.5° |
| Chainstay length | 440 | 440 | 440 | 440 |
| Wheelbase | 1,070 | 1,081 | 1,092 | 1,108 |
| BB drop | 55 | 55 | 55 | 55 |
| Standover | 797 | 830 | 861 | 886 |
| Top tube (method not stated) | 580 | 590 | 600 | 615 |
| Seat tube (method not stated) | 460 | 510 | 560 | 600 |
| Seat angle (method not stated) | 73.0° | 73.0° | 73.0° | 73.0° |
Source: KTM 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 urban bikes. Further right means more of that quality.
Bikes with similar geometry (size M)
The closest size of other urban models, by stack and reach.
Frequently asked questions
What size X-Life Action 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 600/397 mm in size S to 650/416 mm in size XL). 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 X-Life Action in size M?
Stack of 617 mm and reach of 401 mm.
Is the X-Life Action a racing or an endurance bike?
In between. In size M its stack-to-reach ratio is at percentile 45 of urban bikes: neither very low nor very tall.
Does it have the same geometry as the X-Life Race?
In size M, yes: same stack and reach. If one already fits you, the same size of the other will put you in the same position.