2018 On-One Space Chicken 27.5

	S/51cm	M/54cm	L/57cm	XL/60cm
Stack	521mm	552mm	579mm	610mm
Reach	365mm	376mm	387mm	398mm
Stack to Reach Ratio	1.43:1	1.47:1	1.5:1	1.53:1
Seat Tube Length, C-T	510mm	540mm	570mm	600mm
Top Tube Length, Effective/Horizontal Center	527mm	551mm	568mm	591mm
Top Tube Slope	3.9deg	4deg	3.7deg	3.8deg
Head Tube Angle	69.5deg	71deg	72.5deg	72.5deg
Seat Tube Angle	72.25deg	72.25deg	72.25deg	72.25deg
Head Tube Length	104mm	131mm	154mm	181mm
Bottom Bracket Drop	69mm	71mm	69mm	71mm
Bottom Bracket Height	270mm	268mm	270mm	268mm
Chainstay Length	422mm	422mm	422mm	422mm
Chainstay Length Horizontal	416.3mm	416mm	416.3mm	416mm
Front-Center	592mm	598mm	604mm	621mm
Front-Center Horizontal	581.7mm	593mm	603.7mm	615mm
Wheelbase	998mm	1009mm	1020mm	1031mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Fork Length, Unknown	396mm	396mm	396mm	396mm
Trail	73.4mm high	63.9mm mid/neutral	54.5mm mid/neutral	54.5mm mid/neutral
Mechanical Trail	68.7mm	60.4mm	51.9mm	51.9mm
Wheel Flop	24.1mm	19.7mm	15.6mm	15.6mm
Tire to Pedal Spindle	83mm 170 mm cranks	89mm 170 mm cranks	95mm 170 mm cranks	112mm 170 mm cranks
Pedal Spindle to Ground Clearance	100mm 170 mm cranks	98mm 170 mm cranks	100mm 170 mm cranks	98mm 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.on-one.co.uk/c/q/bikes/gravel-adventure-bikes/space-chicken/

Geometry