Bianchi Infinito geometryRoad · 2026 · 7 sizes, from 470 to 610

The Bianchi Infinito is a road bike available in 7 sizes, from 470 to 610. Stack ranges from 531 to 629 mm and reach from 370 to 387 mm. Its geometry is tall and short, built for comfort.

Stack531–629mm

Reach370–387mm

Head angle70.5–72.5°

Chainstay length420–424mm

Stable rearRelaxedPlanted

What size Infinito do I need?

Enter the stack and reach of a bike that fits you well and we will tell you which size is closest and how to set it up.

Stack in mm Reach in mm Compare on Fitbikefy →

470S 531 · R 370

500S 552 · R 372

530S 566 · R 373

550S 584 · R 377

570S 600 · R 382

590S 614.5 · R 384

610S 629 · R 387

Enter your stack and reach to see which size fits you best.

Geometry chart by size

Measurements in mm and degrees, as published by Bianchi. The ones that matter most for choosing a size are in bold.

Size	470	500	530	550	570	590	610
Stack	531	552	566	584	600	615	629
Reach	370	372	373	377	382	384	387
Effective top tube	512	525	535	550	560	572	585
Head tube length	115	135	150	165	180	195	210
Head angle	70.5°	71.0°	71.0°	72.0°	72.5°	72.5°	72.5°
Chainstay length	420	422	422	422	422	424	424
Wheelbase	990	997	1,002	1,003	1,008	1,017	1,024
Front centre	582	586	592	592	597	603	610
BB drop	73	73	73	73	73	73	73
Fork length	385	385	385	385	385	385	385
Fork offset	42	42	42	42	42	42	42
Seat tube (method not stated)	420	450	480	500	520	540	560
Seat angle (method not stated)	75.0°	74.5°	74.0°	73.5°	73.5°	73.0°	72.5°

Source: Bianchi official website · data from 11 Nov 2026.

Stack and reach of every size

Higher means a taller front end; further right means a longer reach. The blue dot is your search.

Character of each size

Compared with other road bikes. Further right means more of that quality.

470

500

530

550

570

590

610

Positionracing → relaxed

Steeringcalm → quick

Pedallingrearward → forward

Bottom brackethigh → low

Wheelbaselively → planted

Rear endstable → agile

Bikes with similar geometry (size 550)

The closest size of other road models, by stack and reach.

ModelΔ stackΔ reach

Specialized Roubaix SL8 · 542026+1 mm+4 mmCompare →

Specialized S-Works Roubaix SL8 · 542026+1 mm+4 mmCompare →

Pinarello NEW PINARELLO X1 · 5252026+4 mm−0 mmCompare →

Pinarello NEW PINARELLO X3 · 5252026+4 mm−0 mmCompare →

Pinarello NEW PINARELLO X5 · 5252026+4 mm−0 mmCompare →

Pinarello NEW PINARELLO X7 · 5252026+4 mm−0 mmCompare →

Frequently asked questions

What size Infinito do I need?

It depends on your position, not just your height. The most reliable way is to compare the stack and reach of a bike that fits you with those of each size (from 531/370 mm in size 470 to 629/387 mm in size 610). The size finder on this page shows the closest size and the stem and spacers you would need.

What are the stack and reach of the Infinito in size 550?

Stack of 584 mm and reach of 377 mm, with an effective top tube of 550 mm and a head angle of 72.0°.

Is the Infinito a racing or an endurance bike?

Endurance. In size 550 its stack-to-reach ratio is at percentile 89 of road bikes: a tall, short position.