Cannondale SystemSix Hi-MOD Dura Ace Di2

A race-focused road bike from 2021, made in 5 sizes from 51 to 60.

Size

Stack 560 mmReach 392 mm

Geometry

Cannondale SystemSix Hi-MOD Dura Ace Di2 geometry by frame size
Size
Fit
Stack (mm)How high the front sits	520	540	560	580	600
Reach (mm)How far forward the bars start	381	386	392	398	403
Stack ÷ reach Higher = more upright	1.36	1.40	1.43	1.46	1.49
Top tube (effective) (mm)Horizontal top-tube length	529	544	560	576	592
Seat tube angle Saddle position over the pedals	74.1°	73.7°	73.3°	72.9°	72.5°
Seat tube length (mm)Frame size reference	433	482	530	553	577
Head tube length (mm)Front-end height	114	128	149	172	193
Standover (mm)Clearance when you stop	723	762	798	821	843
Handling
Head tube angle Steeper = quicker steering	71.2°	73°	73°	73°	72.9°
Fork offset (mm)Fork rake	55	45	45	45	45
Trail (mm)More = steadier steering	58	57	57	57	58
Wheelbase (mm)Longer = more stable	989	975	987	1000	1012
Chainstay (mm)Shorter = snappier	405	405	405	405	405
BB drop (mm)More = lower centre of gravity	74	72	72	69	69
BB height (mm)Pedal clearance in corners	262	264	264	267	267
Front centre (mm)Room for your toes	595	581	593	605	617

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

A low, stretched position built for speed. Suits flexible riders who like to ride fast.

Size 56 is lower and longer than 55% of the 218 road frames we track.

The closest road frames from other ranges, against size 56 here.

Bikes with a similar fit, compared with size 56 of this bike
Bike	Size	Stack	Reach
Cannondale CAAD14 12026Stack same, reach same	56	same	same
Giant TCR Advanced 0 PC2025Stack +2 mm, reach +1 mm	ML	+2 mm	+1 mm
Giant Propel Advanced 12026Stack +2 mm, reach +1 mm	ML	+2 mm	+1 mm
Canyon Ultimate CF 7 Di2 A.502026Stack same, reach +1 mm	M	same	+1 mm
Canyon Aeroad CF SLX 7 AXS NSW2026Stack same, reach +1 mm	M	same	+1 mm
Grind ARC2026Stack +5 mm, reach same	L	+5 mm	same