KTM Revelator Syro Prime geometryRoad · 2027 · 7 sizes, from XXS to XXL
The KTM Revelator Syro Prime is a road bike available in 7 sizes, from XXS to XXL. Stack ranges from 513 to 626 mm and reach from 363 to 392 mm. Its geometry is tall and short, built for comfort. All sizes share 415 mm chainstays.
What size Revelator Syro Prime 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 | XXS | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|---|
| Stack | 513 | 534 | 554 | 573 | 590 | 607 | 626 |
| Reach | 363 | 367 | 376 | 380 | 385 | 389 | 392 |
| Head tube length | 106 | 126 | 146 | 166 | 186 | 206 | 226 |
| Head angle | 70.5° | 71.0° | 72.0° | 72.0° | 72.0° | 72.0° | 72.0° |
| Chainstay length | 415 | 415 | 415 | 415 | 415 | 415 | 415 |
| Wheelbase | 972 | 979 | 987 | 997 | 1,008 | 1,018 | 1,028 |
| BB drop | 74 | 74 | 72 | 72 | 70 | 68 | 68 |
| Standover | 725 | 749 | 775 | 799 | 818 | 837 | 856 |
| Top tube (method not stated) | 500 | 515 | 535 | 550 | 565 | 580 | 595 |
| Seat tube (method not stated) | 410 | 440 | 470 | 500 | 520 | 540 | 560 |
| Seat angle (method not stated) | 75.0° | 74.5° | 74.0° | 73.5° | 73.0° | 72.5° | 72.0° |
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 road bikes. Further right means more of that quality.
Bikes with similar geometry (size M)
The closest size of other road models, by stack and reach.
Frequently asked questions
What size Revelator Syro Prime 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 513/363 mm in size XXS to 626/392 mm in size XXL). 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 Revelator Syro Prime in size M?
Stack of 573 mm and reach of 380 mm.
Is the Revelator Syro Prime a racing or an endurance bike?
Endurance. In size M its stack-to-reach ratio is at percentile 77 of road bikes: a tall, short position.
Does it have the same geometry as the Revelator Syro Prestige?
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.