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Canyon Aeroad CF SLX 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
Canyon Aeroad CF SLX
7 sizes: 2XS, XS, S, M, L, XL, 2XL
Full size guide
2025race geometry
Trek Madone Gen 8
6 sizes: XS, S, M, ML, L, XL
Full size guide
In one look

The Canyon Aeroad CF SLX is built as a race geometry frame, the Trek Madone Gen 8 as a race geometry frame. The Trek Madone Gen 8 stack is slightly taller, about 6 mm, which is not enough to change the position by itself. The Trek Madone Gen 8 cockpit is slightly shorter, by about 5 mm.

For the Canyon Aeroad CF SLX in 2XL there is no Trek Madone Gen 8 size with a comparable position: the range simply does not reach there.

Switching from a Canyon Aeroad CF SLX?

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

You ride the Canyon Aeroad CF SLX inTake the Trek Madone Gen 8 inThe position will feel
2XSXS9 mm taller · 2 mm shorter
XSS9 mm taller
SM7 mm taller · 6 mm shorter
MML2 mm taller · 4 mm shorter
LL2 mm taller · 7 mm shorter
XLXL4 mm taller · 17 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 Canyon Aeroad CF SLX 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: Canyon Aeroad CF SLX or Trek Madone Gen 8?

The Trek Madone Gen 8 stack is slightly taller, about 6 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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