Two Italian race bikes with different frame naming systems. Compare the linked V4 with the new F5 105 Di2 using actual measurements.
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Best for: Riders researching Colnago's numeric race sizing
USD dealer quote required
Best for: Riders wanting closely spaced race frame options
| Aspect | Colnago V4 | Pinarello F5 105 Di2 |
|---|---|---|
| Example frame stack | 539 mm at 485 | 542.4 mm at 53 |
| Example frame reach | 383 mm at 485 | 385.6 mm at 53 |
| Effective top tube | 535 mm at 485 | 545 mm at 53 |
| Height reference | Official height/inseam guide samples ✓ | No bands in the checked table |
| Generation check | V4, not V4Rs or V5Rs | New F5 105 Di2, not every F5 |
| Measurement | Colnago V4 | Pinarello F5 105 Di2 | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | 420 | 455 | 485 | 530 | 550 | 570 | 43 | 46.5 | 50 | 51.5 | 53 | 54.5 | 56 | 57.5 | 59.5 |
| Stack (mm) | 510 | 522 | 539 | 575 | 593 | 612 | 502 | 517.3 | 525.2 | 532.1 | 542.4 | 557.7 | 570.1 | 599.2 | 633.4 |
| Reach (mm) | 370 | 375 | 383 | 395 | 403 | 410 | 351.3 | 365.4 | 372.2 | 378.2 | 385.6 | 388.3 | 390.8 | 395.5 | 400.4 |
Comparing a different size or generation? Use the bike geometry comparison tool with the exact frame charts instead of assuming matching size labels mean matching fit.
Source-backed geometry used in this table
For now this pilot only covers stack and reach. We still do not have standover, top tube, wheelbase, or angle data in a verified record here, so the page stops short of making a stronger fit call.
V4 485 is 539/383 mm stack/reach; new F5 53 is 542.4/385.6 mm. The F5 example is 3.4 mm taller and 2.6 mm longer at the head tube.
The example V4 485 and F5 53 are close in stack and reach despite very different labels. Use that as a reason to compare measurements, not a rule that these labels always match. Exact cockpit dimensions and your existing position should settle the shortlist.