Ridley Noah Fast 3.0 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 Noah Fast 3.0: 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 32 mm shorter. Handlebar position also depends on the stem and spacers.

For the Ridley Noah Fast 3.0 in S, M, L there is no Trek Madone Gen 8 size with a comparable position: the range simply does not reach there.

The frame standards line up, but we hold sourced weights and manufacturer performance claims for both - including which claim was actually measured against the other bike.

  • Price

    Ridley Noah Fast 3.0 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 Noah Fast 3.0
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 32 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 Noah Fast 3.0 and Trek Madone Gen 8 sizes compare?

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

Ridley Noah Fast 3.0
XXS
Stack 497, Reach 386
Trek Madone Gen 8
XS
Stack 507, Reach 370

Stack: 10 mm taller

Reach: 16 mm shorter

Ridley Noah Fast 3.0
XS
Stack 504, Reach 399
Trek Madone Gen 8
XS
Stack 507, Reach 370

Stack: 3 mm taller

Reach: 29 mm shorter

Ridley Noah Fast 3.0
S
Stack 521, Reach 410
Trek Madone Gen 8
S
Stack 530, Reach 378
Different position

Stack: 9 mm taller

Reach: 32 mm shorter

Ridley Noah Fast 3.0
M
Stack 541, Reach 420
Trek Madone Gen 8
M
Stack 546, Reach 384
Different position

Stack: 5 mm taller

Reach: 36 mm shorter

Ridley Noah Fast 3.0
L
Stack 565, Reach 428
Trek Madone Gen 8
ML
Stack 562, Reach 389
Different position

Stack: 3 mm lower

Reach: 39 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 Noah Fast 3.0 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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