2019 Boardman Bikes ADV 8.9

	S	M	L	XL
Stack	554mm	573mm	594mm	608mm
Reach	376mm	385mm	388mm	399mm
Stack to Reach Ratio	1.47:1	1.49:1	1.53:1	1.52:1
Seat Tube Length, C-C	515mm	530mm	555mm	575mm
Top Tube Length, Effective/Horizontal Center	535mm	555mm	570mm	585mm
Head Tube Angle	70.5deg	70.5deg	71deg	71deg
Seat Tube Angle	74deg	73.5deg	73deg	73deg
Head Tube Length	130mm	150mm	170mm	185mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	279mm	279mm	279mm	279mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	424.3mm	424.3mm	424.3mm	424.3mm
Front-Center	604.5mm	620.1mm	625.2mm	641mm
Front-Center Horizontal	600.4mm	616.2mm	621.3mm	637.1mm
Wheelbase	1024.7mm	1040.4mm	1045.6mm	1061.4mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Trail	70.5mm high	70.5mm high	67.3mm high	67.3mm high
Mechanical Trail	66.5mm	66.5mm	63.6mm	63.6mm
Wheel Flop	22.2mm	22.2mm	20.7mm	20.7mm
Tire to Pedal Spindle	85.5mm 170 mm cranks	98.1mm 173 mm cranks	103.2mm 173 mm cranks	117mm 175 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	106mm 173 mm cranks	106mm 173 mm cranks	104mm 175 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.halfords.com/cycling/bikes/cyclocross-bikes/boardman-adv-8-9-mens-adventure-bike?_br_psugg_q=boardman+adv+8+9

Geometry