	48	50	52	54	55	56	58	60	62
Stack	515mm	532mm	544mm	556mm	562mm	577mm	588mm	601mm	620mm
Reach	373mm	376mm	378mm	379mm	382mm	384mm	397mm	400mm	400mm
Stack to Reach Ratio	1.38:1	1.41:1	1.44:1	1.47:1	1.47:1	1.5:1	1.48:1	1.5:1	1.55:1
Seat Tube Length, C-T	480mm	500mm	520mm	540mm	550mm	560mm	580mm	590mm	620mm
Top Tube Length, Actual C-C	518mm	525mm	535mm	545mm	556mm	565mm	580mm	584mm	605mm
Top Tube Slope	6deg	5.7deg	4.8deg	4.1deg	3.8deg	4.3deg	3.4deg	3.7deg	2.8deg
Head Tube Angle	71deg	71deg	72.5deg	72.5deg	73deg	73deg	73deg	73deg	72deg
Seat Tube Angle	74.5deg	74deg	74deg	73.5deg	73deg	73deg	73deg	73deg	72.5deg
Head Tube Length	105mm	121mm	130mm	145mm	155mm	165mm	175mm	190mm	210mm
Bottom Bracket Drop	72mm	72mm	72mm	70mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	267mm	267mm	267mm	269mm	269mm	269mm	269mm	269mm	269mm
Chainstay Length	408mm	410mm	410mm	410mm	410mm	410mm	413mm	412mm	415mm
Chainstay Length Horizontal	401.6mm	403.6mm	403.6mm	404mm	404mm	404mm	407mm	406mm	409.1mm
Front-Center	582.9mm	591.7mm	583.7mm	588.8mm	583.7mm	590.2mm	606.5mm	613.4mm	629.9mm
Front-Center Horizontal	578.4mm	587.3mm	579.3mm	584.7mm	579.5mm	586.1mm	602.4mm	609.4mm	626mm
Wheelbase	980mm	990.9mm	982.9mm	988.6mm	983.5mm	990mm	1009.5mm	1015.4mm	1035.1mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	370mm	370mm	370mm	370mm	368mm	368mm	368mm	368mm	368mm
Trail	63.9mm mid/neutral	63.9mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral	56.6mm mid/neutral	56.6mm mid/neutral	56.6mm mid/neutral	56.6mm mid/neutral	62.8mm mid/neutral
Mechanical Trail	60.4mm	60.4mm	51.9mm	51.9mm	54.1mm	54.1mm	54.1mm	54.1mm	59.8mm
Wheel Flop	19.7mm	19.7mm	15.6mm	15.6mm	15.8mm	15.8mm	15.8mm	15.8mm	18.5mm
Tire to Pedal Spindle	73.9mm 170 mm cranks	82.7mm 170 mm cranks	74.7mm 170 mm cranks	79.8mm 170 mm cranks	74.7mm 170 mm cranks	81.2mm 170 mm cranks	97.5mm 170 mm cranks	104.4mm 170 mm cranks	120.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	97mm 170 mm cranks	97mm 170 mm cranks	97mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks	99mm 170 mm cranks

	48	50	52	54	55	56	58	60	62
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	28mm	28mm	28mm	28mm	28mm	28mm	28mm	28mm	28mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1658mm	1668.9mm	1660.9mm	1666.6mm	1661.5mm	1668mm	1687.5mm	1693.4mm	1713.1mm

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Learn more about the Upright/Aggressive Scale

Category Trend

Performance Road

Source:drive.google.com

Suggest Bike Edit

2026 Cicli Bonanno Futomaki DISC ICR Base

Geometry

Base Build

Stack and Reach vs. Category Trend