2021 Boardman Bikes ADV 8.6

	SM	MD	LG	XL
Stack	554mm	573mm	596mm	608mm
Reach	376mm	384mm	393mm	399mm
Stack to Reach Ratio	1.47:1	1.49:1	1.52:1	1.52:1
Seat Tube Length, Unknown	515mm	530mm	555mm	575mm
Top Tube Length, Effective/Horizontal Unknown	535mm	555mm	570mm	585mm
Top Tube Slope	6.5deg	6.9deg	6.7deg	5.9deg
Head Tube Angle	71deg	71deg	71.5deg	71.5deg
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	599.6mm	614.1mm	625.7mm	635.6mm
Front-Center Horizontal	595.5mm	610.1mm	621.7mm	631.7mm
Wheelbase	1019.8mm	1034.3mm	1046mm	1056mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Trail	67.3mm high	67.3mm high	64.1mm mid/neutral	64.1mm mid/neutral
Mechanical Trail	63.6mm	63.6mm	60.7mm	60.7mm
Wheel Flop	20.7mm	20.7mm	19.3mm	19.3mm
Tire to Pedal Spindle	80.6mm 170 mm cranks	95.1mm 170 mm cranks	104.2mm 172.5 mm cranks	111.6mm 175 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	109mm 170 mm cranks	106.5mm 172.5 mm cranks	104mm 175 mm cranks

Published Sizing Recommendations

Height

170 cm

179 cm

177 cm

183 cm

181 cm

189 cm

187 cm

195 cm

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.boardmanbikes.com/gb_en/products/2331-adv-8.62021.html