2021 TanTan Cycling (Seraph) GR039 Base

	490	520	540	560	580
Stack	535.2mm	551.2mm	571.2mm	586.1mm	601.5mm
Reach	346mm	361.1mm	370mm	375.4mm	387.8mm
Stack to Reach Ratio	1.55:1	1.53:1	1.54:1	1.56:1	1.55:1
Seat Tube Length, C-T	479mm	499mm	529mm	549mm	569mm
Top Tube Length, Effective/Horizontal HT Top	520mm	545mm	555mm	565mm	580mm
Top Tube Slope	9deg	8.3deg	7.2deg	6.7deg	6.2deg
Head Tube Angle	69deg	70deg	70.5deg	70.5deg	71deg
Seat Tube Angle	73.5deg	73deg	72.5deg	72deg	71.5deg
Head Tube Length	115mm	133mm	153mm	168mm	180mm
Bottom Bracket Drop	63mm	63mm	63mm	63mm	63mm
Bottom Bracket Height	295.5mm	295.5mm	295.5mm	295.5mm	295.5mm
Chainstay Length	425mm	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	420.3mm	420.3mm	420.3mm	420.3mm	420.3mm
Front-Center	564.2mm	589.1mm	601mm	611mm	617.9mm
Front-Center Horizontal	560.7mm	585.7mm	597.7mm	607.7mm	614.7mm
Wheelbase	981mm	1006mm	1018mm	1028mm	1035mm
Fork Offset/Rake	55mm	55mm	55mm	55mm	55mm
Fork Length (On-Axis)	398mm	398mm	398mm	398mm	398mm
Trail	78.7mm high	72mm high	68.6mm high	68.6mm high	65.3mm high
Mechanical Trail	73.5mm	67.6mm	64.7mm	64.7mm	61.7mm
Wheel Flop	26.3mm	23.1mm	21.6mm	21.6mm	20.1mm
Tire to Pedal Spindle	35.7mm 170 mm cranks	60.6mm 170 mm cranks	72.5mm 170 mm cranks	82.5mm 170 mm cranks	89.4mm 170 mm cranks
Pedal Spindle to Ground Clearance	125.5mm 170 mm cranks	125.5mm 170 mm cranks	125.5mm 170 mm cranks	125.5mm 170 mm cranks	125.5mm 170 mm cranks

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.aliexpress.com/item/4000453775800.html?spm=2114.12010612.8148356.1.70c43aa6k9Jazy

Geometry