2020 Oxford Bike Works Model 1 26" Base

	Small	Medium	Large	Extra Large
Stack	495.9mm	542.4mm	570.2mm	592.3mm
Reach	393mm	406.8mm	416.9mm	422.6mm
Stack to Reach Ratio	1.26:1	1.33:1	1.37:1	1.4:1
Seat Tube Length, C-T	406mm	457mm	508mm	560mm
Top Tube Length, Effective/Horizontal Center	537.4mm	564.2mm	592.5mm	610mm
Top Tube Length, Actual C-C	518mm	544.5mm	573mm	594.6mm
Top Tube Slope	11.8deg	10.9deg	8.4deg	5.6deg
Head Tube Angle	70.5deg	71deg	71deg	71.5deg
Seat Tube Angle	74deg	74deg	73deg	72.5deg
Head Tube Length	135mm	160mm	180mm	200mm
Bottom Bracket Drop	45mm	45mm	45mm	45mm
Bottom Bracket Height	281.5mm	281.5mm	281.5mm	281.5mm
Chainstay Length	434mm	434mm	454mm	454mm
Chainstay Length Horizontal	431.7mm	431.7mm	451.8mm	451.8mm
Front-Center	601.5mm	625mm	643.7mm	651mm
Front-Center Horizontal	599.8mm	623.3mm	642.1mm	649.4mm
Wheelbase	1031.5mm	1055mm	1093.9mm	1101.2mm
Fork Offset/Rake	41mm	41mm	41mm	41mm
Trail	72.1mm high	69.1mm high	69.1mm high	66mm high
Mechanical Trail	68mm	65.3mm	65.3mm	62.6mm
Wheel Flop	22.7mm	21.3mm	21.3mm	19.9mm
Tire to Pedal Spindle	100mm 175 mm cranks	123.5mm 175 mm cranks	142.2mm 175 mm cranks	149.5mm 175 mm cranks
Pedal Spindle to Ground Clearance	106.5mm 175 mm cranks	106.5mm 175 mm cranks	106.5mm 175 mm cranks	106.5mm 175 mm cranks

Published Sizing Recommendations

Height

147 cm

160 cm

157 cm

173 cm

170 cm

185 cm

180 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.oxfordbikeworks.co.uk/our-frame