What height is a Cervelo S5 size 54 for?

The S5 2025 support page lists size 54 for 167.6-175 cm rider height. The frame has 542 mm stack and 384 mm reach. Cervelo's published height endpoints do not cover every decimal continuously, so ask for a fit check if you fall between ranges.

Does the Cervelo S5 come in size 61?

Yes. The sourced S5 2025 support chart includes 61 with 608 mm stack, 409 mm reach and a 595 mm top tube. Its height guide lists 193.0-200 cm. Check availability separately; a geometry row does not establish stock.

Are S5 stack and reach measured to the handlebar?

The figures in this table are frame stack and reach, not handlebar coordinates. The HB19 cockpit and its permitted setup determine the final hand position. Compare the complete setup when transferring a fit from another bike.

Cervélo S5 Size Chart & Geometry

Jump to the frame geometry table

A Cervelo S5 frame size is only part of its fit. The official S5 2025 support chart gives a size 54 frame 542 mm stack and 384 mm reach, but your hands sit on the cockpit above and ahead of that point. This guide separates those frame dimensions from the height guidance and the HB19 one-piece cockpit.

Which bike does this chart cover?

The manufacturer's S5 2025 support family, labeled 2025 - Present on the linked page and captured November 4, 2026. Its geometry table includes sizes 48, 51, 54, 56, 58 and 61, and its cockpit FAQ identifies HB19. Earlier S5 generations and their V-stem instructions are outside this guide.

View the manufacturer's geometry chart

Source captured 2026-11-04; reviewed 2026-11-04.

Cervélo S5 frame geometry by size

Cervélo S5 official-source geometry; all lengths in millimeters
Frame size	Stack (mm)	Reach (mm)	Top tube (mm)
48	496	367	520
51	519	376	535
54	542	384	550
56	565	392	565
58	588	401	581
61	608	409	595

48
Stack (mm)
496
Reach (mm)
367
Top tube (mm)
520
51
Stack (mm)
519
Reach (mm)
376
Top tube (mm)
535
54
Stack (mm)
542
Reach (mm)
384
Top tube (mm)
550
56
Stack (mm)
565
Reach (mm)
392
Top tube (mm)
565
58
Stack (mm)
588
Reach (mm)
401
Top tube (mm)
581
61
Stack (mm)
608
Reach (mm)
409
Top tube (mm)
595

Captured from the Geometry table on the manufacturer's S5 2025 support page, labeled 2025 - Present. These are frame stack and reach, not handlebar coordinates. The page identifies the HB19 one-piece cockpit. Do not apply this chart to earlier S5 generations or substitute older V-stem adjustment instructions.

S5 54 vs 56

Going from 54 to 56 adds 23 mm frame stack, 8 mm frame reach and 15 mm effective top tube. That is a substantial front-end height change. If the 54 is too low, compare the permitted cockpit setup on both sizes before assuming the 56 is the answer; it also makes the frame longer.

Keep the published height endpoints intact

Cervelo's support page lists 48 for 149.9-160 cm, 51 for 160.0-167 cm, 54 for 167.6-175 cm, 56 for 175.3-182 cm, 58 for 182.9-193 cm and 61 for 193.0-200 cm. Small gaps reflect the published endpoints. Do not invent a cutoff in those gaps or treat height as a substitute for inseam, proportions and a fit check.

Match the cockpit to this S5 generation

The linked support page specifies an HB19 one-piece cockpit. Confirm the chosen bar width, stem length and permitted height adjustment with the seller before purchase. Older S5 V-stem setup advice is not interchangeable with this system, and frame stack/reach is not the final handlebar position.