2021 Guerciotti Eureka Base

	XXS	XS	S	M	L	XL
Stack	493.1mm	505.8mm	524mm	543.5mm	564mm	592.7mm
Reach	373.1mm	380.1mm	385mm	386mm	395.2mm	400.6mm
Stack to Reach Ratio	1.32:1	1.33:1	1.36:1	1.41:1	1.43:1	1.48:1
Seat Tube Length, C-TTT	430mm	470mm	490mm	510mm	530mm	550mm
Top Tube Length, Effective/Horizontal HT Top	505mm	515mm	536mm	547mm	565mm	582mm
Top Tube Slope	6.8deg	3.7deg	3.7deg	3.8deg	3.9deg	4.8deg
Head Tube Angle	71deg	72deg	73deg	73deg	73.5deg	73.5deg
Seat Tube Angle	75deg	75deg	74deg	73.5deg	73.25deg	73deg
Head Tube Length	95mm	105mm	120mm	140mm	160mm	190mm
Bottom Bracket Height	—	—	—	—	—	—
Chainstay Length	410mm	410mm	410mm	410mm	410mm	410mm
Front-Center	570.4mm	574mm	575mm	580mm	593mm	607mm
Trail	— —	— —	— —	— —	— —	— —
Mechanical Trail	—	—	—	—	—	—
Wheel Flop	—	—	—	—	—	—
Tire to Pedal Spindle	64.4mm 170 mm cranks	68mm 170 mm cranks	69mm 170 mm cranks	74mm 170 mm cranks	87mm 170 mm cranks	101mm 170 mm cranks

	XXS	XS	S	M	L	XL
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
Tire Width	25mm	25mm	25mm	25mm	25mm	25mm
Tire Outer Diameter	672mm	672mm	672mm	672mm	672mm	672mm

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.

Category Trend

Source:https://www.guerciotti.it/en/bikes/road-bikes/eureka-air-disc/

Geometry