	XXS	XS	S	M	L	XL	XXL
Stack	503mm	517mm	538mm	557mm	571mm	596mm	630mm
Reach	357mm	370mm	374mm	386mm	390mm	399mm	414mm
Stack to Reach Ratio	1.41:1	1.4:1	1.44:1	1.44:1	1.46:1	1.49:1	1.52:1
Seat Tube Length, C-C	420mm	430mm	460mm	490mm	505mm	535mm	565mm
Top Tube Length, Effective/Horizontal Center	500mm	517mm	530mm	547mm	560mm	575mm	600mm
Head Tube Angle	69.5deg	69.5deg	71.5deg	72.5deg	73deg	73.5deg	73.5deg
Seat Tube Angle	74.5deg	74.5deg	74deg	74deg	73.5deg	73.5deg	73.5deg
Head Tube Length	102mm	116mm	128mm	145mm	158mm	182mm	217mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	271mm	271mm	271mm	271mm	271mm	271mm	271mm
Chainstay Length	406mm	406mm	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	399.6mm	399.6mm	403.6mm	403.6mm	403.6mm	403.6mm	403.6mm
Front-Center	577mm	594.8mm	581.8mm	590.8mm	593.8mm	605.7mm	630.5mm
Front-Center Horizontal	572.4mm	590.4mm	577.4mm	586.4mm	589.4mm	601.4mm	626.4mm
Wheelbase	972mm	990mm	981mm	990mm	993mm	1005mm	1030mm
Fork Offset/Rake	74mm	74mm	66mm	60mm	57mm	54mm	54mm
Trail	49.2mm mid/neutral	49.2mm mid/neutral	45.2mm mid/neutral	45.2mm mid/neutral	45.3mm mid/neutral	45.3mm mid/neutral	45.3mm mid/neutral
Mechanical Trail	46.1mm	46.1mm	42.8mm	43.1mm	43.3mm	43.4mm	43.4mm
Wheel Flop	16.2mm	16.2mm	13.6mm	13mm	12.7mm	12.3mm	12.3mm
Standover Height	723mm	734mm	759mm	783mm	797mm	824mm	855mm
Tire to Pedal Spindle	64mm 170 mm cranks	81.8mm 170 mm cranks	68.8mm 170 mm cranks	77.8mm 170 mm cranks	80.8mm 170 mm cranks	92.7mm 170 mm cranks	117.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks

	XXS	XS	S	M	L	XL	XXL
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
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1658mm	1676mm	1667mm	1676mm	1679mm	1691mm	1716mm

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

Endurance Road

Source:https://www.festka.com/en/models/doppler-road

Suggest Bike Edit

2026 Festka Doppler Base

Geometry

Base Build

Stack and Reach vs. Category Trend