Bianchi Oltre vs Trek Madone Gen 8: 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 differ enough to matter. Compare the geometry below, then use your measurements to identify the safer size and setup.

Compare them for meCompare geometry and sizes

In one look

Bianchi Oltre: race geometry. Trek Madone Gen 8: race geometry.

  • Across matched sizes, the Trek Madone Gen 8 stack sits about 10 mm taller than the Bianchi Oltre, which generally means a more upright position before spacers.
  • The Trek Madone Gen 8 cockpit runs about 18 mm shorter, a noticeably more compact position.

For the Bianchi Oltre in 47, 50 there is no Trek Madone Gen 8 size with a comparable position: the range simply does not reach there.

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

2026 • race geometry
Bianchi Oltre
Full size guide
2025 • race geometry
Trek Madone Gen 8
Full size guide

Fit and size differences

Geometry can separate these bikes: matched sizes create a meaningfully different position.

Median difference across matched sizes: stack 10 mm, reach 18 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 Bianchi Oltre and Trek Madone Gen 8 sizes compare?

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

Bianchi Oltre
47
Stack 470, Reach 385
Trek Madone Gen 8
XS
Stack 507, Reach 370
Different position

Stack: 37 mm taller

Reach: 15 mm shorter

Bianchi Oltre
50
Stack 478, Reach 392
Trek Madone Gen 8
XS
Stack 507, Reach 370
Different position

Stack: 29 mm taller

Reach: 22 mm shorter

Bianchi Oltre
53
Stack 504, Reach 393
Trek Madone Gen 8
XS
Stack 507, Reach 370

Stack: 3 mm taller

Reach: 23 mm shorter

Bianchi Oltre
55
Stack 520, Reach 397
Trek Madone Gen 8
S
Stack 530, Reach 378

Stack: 10 mm taller

Reach: 19 mm shorter

Bianchi Oltre
57
Stack 536, Reach 402
Trek Madone Gen 8
M
Stack 546, Reach 384

Stack: 10 mm taller

Reach: 18 mm shorter

Bianchi Oltre
59
Stack 555, Reach 406
Trek Madone Gen 8
ML
Stack 562, Reach 389

Stack: 7 mm taller

Reach: 17 mm shorter

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 has the taller front end: Bianchi Oltre or Trek Madone Gen 8?
Across matched sizes, the Trek Madone Gen 8 stack sits about 10 mm taller than the Bianchi Oltre, which generally means a more upright position before spacers.

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