Cervélo Caledonia-5 vs Specialized Tarmac SL9: 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

Cervélo Caledonia-5: endurance geometry. Specialized Tarmac SL9: race geometry.

  • The frame front of Cervélo Caledonia-5 is slightly higher, by about 7 mm. That difference alone does not settle your position.
  • The frame front of Specialized Tarmac SL9 is slightly longer, by about 7 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

    Specialized Tarmac SL9 is the dearer of the two, going by the cheapest build you can buy of each; Cervélo Caledonia-5 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.

2026 • endurance geometry
Cervélo Caledonia-5
Full size guide
2026 • race geometry
Specialized Tarmac SL9
Full size guide

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 7 mm, forward length 7 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 Cervélo Caledonia-5 and Specialized Tarmac SL9 sizes compare?

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

Cervélo Caledonia-5
48
Stack 505, Reach 360
Specialized Tarmac SL9
44
Stack 501, Reach 366

Stack: 4 mm lower

Reach: 6 mm longer

Cervélo Caledonia-5
51
Stack 530, Reach 369
Specialized Tarmac SL9
52
Stack 527, Reach 380

Stack: 3 mm lower

Reach: 11 mm longer

Cervélo Caledonia-5
54
Stack 555, Reach 378
Specialized Tarmac SL9
54
Stack 544, Reach 384

Stack: 11 mm lower

Reach: 6 mm longer

Cervélo Caledonia-5
56
Stack 580, Reach 387
Specialized Tarmac SL9
56
Stack 565, Reach 395

Stack: 15 mm lower

Reach: 8 mm longer

Cervélo Caledonia-5
58
Stack 605, Reach 396
Specialized Tarmac SL9
61
Stack 612, Reach 408

Stack: 7 mm taller

Reach: 12 mm longer

Cervélo Caledonia-5
61
Stack 630, Reach 405
Specialized Tarmac SL9
61
Stack 612, Reach 408

Stack: 18 mm lower

Reach: 3 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: Cervélo Caledonia-5 or Specialized Tarmac SL9?
The frame front of Cervélo Caledonia-5 is slightly higher, by about 7 mm. That difference alone does not settle your position.

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