Ridley Falcn RS 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

Ridley Falcn RS: race geometry. Trek Madone Gen 8: race geometry.

  • The frame front of Trek Madone Gen 8 is slightly higher, by about 5 mm. That difference alone does not settle your position.
  • The frame front of Trek Madone Gen 8 is about 9 mm shorter. Handlebar position also depends on the stem and spacers.

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

    Ridley Falcn RS is the dearer of the two, going by the cheapest build you can buy of each; Trek Madone Gen 8 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
Ridley Falcn RS
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.

Typical difference across matched sizes: frame front height 5 mm, forward length 9 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 Ridley Falcn RS and Trek Madone Gen 8 sizes compare?

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

Ridley Falcn RS
XXS
Stack 492, Reach 374
Trek Madone Gen 8
XS
Stack 507, Reach 370

Stack: 15 mm taller

Reach: 4 mm shorter

Ridley Falcn RS
XS
Stack 513, Reach 378
Trek Madone Gen 8
XS
Stack 507, Reach 370

Stack: 6 mm lower

Reach: 8 mm shorter

Ridley Falcn RS
S
Stack 530, Reach 388
Trek Madone Gen 8
S
Stack 530, Reach 378

Stack: practically identical

Reach: 10 mm shorter

Ridley Falcn RS
M
Stack 551, Reach 397
Trek Madone Gen 8
M
Stack 546, Reach 384

Stack: 5 mm lower

Reach: 13 mm shorter

Ridley Falcn RS
L
Stack 573, Reach 404
Trek Madone Gen 8
L
Stack 582, Reach 394

Stack: 9 mm taller

Reach: 10 mm shorter

Ridley Falcn RS
XL
Stack 599, Reach 411
Trek Madone Gen 8
XL
Stack 610, Reach 402

Stack: 11 mm taller

Reach: 9 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 frame has the higher front: Ridley Falcn RS or Trek Madone Gen 8?
The frame front of Trek Madone Gen 8 is slightly higher, by about 5 mm. That difference alone does not settle your position.

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