Bianchi Infinito ULTEGRA DI2

An all-round road bike from 2024, made in 7 sizes from 47 to 61.

Size

Stack 569 mmReach 381 mm

Geometry

Bianchi Infinito ULTEGRA DI2 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	521	539	553	569	585	600	614
Reach (mm)How far forward the bars start	371	375	377	381	386	391	392
Stack ÷ reach Higher = more upright	1.40	1.44	1.47	1.49	1.52	1.53	1.57
Top tube (effective) (mm)Horizontal top-tube length	515	525	535	550	560	575	585
Seat tube angle Saddle position over the pedals	74.5°	74.5°	74°	73.5°	73.5°	73°	72.5°
Seat tube length (mm)Frame size reference	420	450	480	500	520	540	560
Head tube length (mm)Front-end height	120	135	150	165	165	195	210
Handling
Head tube angle Steeper = quicker steering	70.5°	71.5°	71°	72°	72.5°	72.5°	72.5°
Fork offset (mm)Fork rake	42	44	37	43	38	44	42
Trail (mm)More = steadier steering	75	67	78	65	67	61	63
Wheelbase (mm)Longer = more stable	985	988	993	998	998	1019	1023
Chainstay (mm)Shorter = snappier	415	415	415	415	415	420	420
BB drop (mm)More = lower centre of gravity	68	68	68	68	68	68	68
BB height (mm)Pedal clearance in corners	268	268	268	268	268	268	268
Front centre (mm)Room for your toes	580	583	588	593	593	608	612

Underlined values are calculated by BikeLens. A dash means the brand doesn't publish it.

Between race and comfort. A good fit for sportives, club rides and fast days out.

Size 55 is more upright than 74% of the 218 road frames we track.

The closest road frames from other ranges, against size 55 here.

Bikes with a similar fit, compared with size 55 of this bike
Bike	Size	Stack	Reach
Cannondale Synapse 12026Stack +1 mm, reach same	54	+1 mm	same
Wilier Granturismo SLR2024Stack −3 mm, reach −2 mm	M	−3 mm	−2 mm
Grind Grit2026Stack +2 mm, reach −3 mm	M	+2 mm	−3 mm
Bmc Roadmachine TWO2026Stack +1 mm, reach +2 mm	54	+1 mm	+2 mm
Basso Venta R2026Stack +2 mm, reach same	53	+2 mm	same
Kross VENTO DSC 8.02025Stack −5 mm, reach same	M	−5 mm	same