Trek Madone Gen 8 vs Winspace M6 Aero 105 Di2: which bike is right for you?

Compare ride character, intended rider, geometry, and fit. Add your measurements to see which bike suits you better and which size to choose on each.

Fit verdict: the frame positions are close, a few millimetres apart. The frame alone will not decide this; use your measurements to see which size and setup gets nearer to your position on each bike.

Compare them for meCompare geometry and sizes

In one look

Trek Madone Gen 8: race geometry. Winspace M6 Aero 105 Di2: cross-country geometry.

  • Across matched sizes, the frame fronts of Trek Madone Gen 8 and Winspace M6 Aero 105 Di2 differ by only a few millimetres. Stem and spacer choices will have more effect on handlebar position.
  • The frame front of Winspace M6 Aero 105 Di2 is slightly longer, by about 6 mm.

The frame standards line up and we hold no sourced weight or performance claim that separates them. What is left to decide is your size and setup on each frame.

  • Price

    Trek Madone Gen 8 is the dearer of the two, going by the cheapest build you can buy of each; Winspace M6 Aero 105 Di2 starts lower.

Subjective findings from independent tests on stock or near-stock builds. Tyres, pressure and size change how a frame feels.

We compare differences at frame and model level. Components, current price, and availability depend on the exact build and seller.

2025 • race geometry
Trek Madone Gen 8
Size guide and geometry for the Trek Madone Gen 8
2026 • cross-country geometry
Winspace M6 Aero 105 Di2
Size guide and geometry for the Winspace M6 Aero 105 Di2

Fit and size differences

The matched frame measurements differ by only a few millimetres, so stem and spacer choices can matter more than the frame.

Typical difference across matched sizes: frame front height 1 mm, forward length 6 mm.

For a personal answer, the fit-and-size path uses your measurements to show only the relevant frame sizes. The full chart remains available as a reference.

View geometry for every size

How do Trek Madone Gen 8 and Winspace M6 Aero 105 Di2 sizes compare?

See the closest size matches and the differences in stack, reach, and riding position.

Trek Madone Gen 8
XS
Stack 507, Reach 370
Winspace M6 Aero 105 Di2
XS
Stack 507, Reach 365

Stack: practically identical

Reach: 5 mm shorter

Trek Madone Gen 8
S
Stack 530, Reach 378
Winspace M6 Aero 105 Di2
M
Stack 535, Reach 383

Stack: 5 mm taller

Reach: 5 mm longer

Trek Madone Gen 8
M
Stack 546, Reach 384
Winspace M6 Aero 105 Di2
L
Stack 550, Reach 391

Stack: 4 mm taller

Reach: 7 mm longer

Trek Madone Gen 8
ML
Stack 562, Reach 389
Winspace M6 Aero 105 Di2
XL
Stack 564, Reach 400

Stack: practically identical

Reach: 11 mm longer

Trek Madone Gen 8
L
Stack 582, Reach 394
Winspace M6 Aero 105 Di2
XL
Stack 564, Reach 400

Stack: 18 mm lower

Reach: 6 mm longer

Trek Madone Gen 8
XL
Stack 610, Reach 402
Winspace M6 Aero 105 Di2
XXL
Stack 593, Reach 407

Stack: 17 mm lower

Reach: 5 mm longer

The same size label can create a different position on each frame. Stack and reach are one part of the decision; the personalized comparison connects them to your body and each bike’s ride character.

FAQ

Can the same rider take different sizes on these two bikes?
Yes. Frame labels are not standardized, so the same rider may need different sizes. This comparison deliberately avoids a generic matched-size answer and hands your measurements to Bike Fit instead.
Which frame has the higher front: Trek Madone Gen 8 or Winspace M6 Aero 105 Di2?
Across matched sizes, the frame fronts of Trek Madone Gen 8 and Winspace M6 Aero 105 Di2 differ by only a few millimetres. Stem and spacer choices will have more effect on handlebar position.

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