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Festka Spectre Road vs Trek Madone Gen 8: geometry and fit comparison

Matched sizes, stack and reach deltas, and a fit check against your own body instead of guessing from two separate size charts.

2026race geometry
Festka Spectre Road
7 sizes: XXS, XS, S, M, L, XL, XXL
Full size guide
2025race geometry
Trek Madone Gen 8
6 sizes: XS, S, M, ML, L, XL
Full size guide
In one look

The Festka Spectre Road is built as a race geometry frame, the Trek Madone Gen 8 as a race geometry frame. The Festka Spectre Road stack is slightly taller, about 8 mm, which is not enough to change the position by itself. Reach is nearly identical across matched sizes.

Switching from a Festka Spectre Road?

Your closest Trek Madone Gen 8 size, and what will still feel different about the position.

You ride the Festka Spectre Road inTake the Trek Madone Gen 8 inThe position will feel
XXSXS4 mm taller · 13 mm longer
XSXS10 mm lower
SS8 mm lower · 4 mm longer
MML5 mm taller · 3 mm longer
LML9 mm lower · 1 mm shorter
XLXL14 mm taller · 3 mm longer
XXLXL20 mm lower · 12 mm shorterDifferent position

Which one fits you better?

Run the same measurements through both frames. The likely size and the full fit report can differ more than the spec sheets suggest.

Quick size check

What Festka Spectre Road size fits you?

Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.

No account needed for this check. The full report keeps this bike preselected.

Quick size check

What Trek Madone Gen 8 size fits you?

Get an instant frame estimate, then continue into the full fit report to check cockpit reach, bar drop, and setup risks before you buy.

No account needed for this check. The full report keeps this bike preselected.

FAQ

Which has the taller front end: Festka Spectre Road or Trek Madone Gen 8?

The Festka Spectre Road stack is slightly taller, about 8 mm, which is not enough to change the position by itself.

Can the same rider take different sizes on these two bikes?

Yes, and it happens often: frame labels are not standardized. Use the matched-size table for geometry, then run the fit check below with your own measurements for each bike.

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