Specialized Epic geometryMTB · 2026 · 4 sizes, from S to XL
The Specialized Epic is a mtb bike available in 4 sizes, from S to XL. Stack ranges from 594 to 645 mm and reach from 425 to 510 mm. Its geometry is low and long, with a racing fit.
What size Epic 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 Specialized. The ones that matter most for choosing a size are in bold.
| Size | S | M | L | XL |
|---|---|---|---|---|
| Stack | 594 | 604 | 618 | 645 |
| Reach | 425 | 455 | 485 | 510 |
| Effective top tube | 568 | 601 | 634 | 666 |
| Head tube length | 92 | 105 | 120 | 150 |
| Head angle | 66.3° | 66.3° | 66.3° | 66.3° |
| Chainstay length | 435 | 435 | 438 | 442 |
| Wheelbase | 1,148 | 1,184 | 1,223 | 1,264 |
| Front centre | 716 | 752 | 788 | 823 |
| BB drop | 37 | 35 | 35 | 35 |
| BB height | 333 | 335 | 335 | 335 |
| Fork length | 531 | 531 | 531 | 531 |
| Fork offset | 44 | 44 | 44 | 44 |
| Trail | 120 | 120 | 120 | 120 |
| Standover | 749 | 755 | 757 | 764 |
| Seat tube (method not stated) | 390 | 410 | 455 | 505 |
| Seat angle (method not stated) | 76.0° | 76.0° | 76.0° | 76.0° |
Source: Specialized 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 mtb bikes. Further right means more of that quality.
Bikes with similar geometry (size M)
The closest size of other mtb models, by stack and reach.
Frequently asked questions
What size Epic 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 594/425 mm in size S to 645/510 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 Epic in size M?
Stack of 604 mm and reach of 455 mm, with an effective top tube of 601 mm and a head angle of 66.3°.
Is the Epic a racing or an endurance bike?
Racing. In size M its stack-to-reach ratio is at percentile 27 of mtb bikes: a low, stretched position.
Does it have the same geometry as the S-Works Epic?
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.