2015 Chromag Bikes Rootdown 150mm Fork

	S	M	M/L	L	XL
Stack	623mm	623mm	623mm	623mm	623mm
Reach	381mm	401mm	420mm	436mm	451mm
Stack to Reach Ratio	1.64:1	1.55:1	1.48:1	1.43:1	1.38:1
Seat Tube Length, C-T	394mm	432mm	470mm	495mm	533mm
Top Tube Length, Effective/Horizontal HT Top	565mm	584mm	603mm	620mm	635mm
Top Tube Slope	26.4deg	21.7deg	17.3deg	14.5deg	10.6deg
Head Tube Angle	67.5deg	67.5deg	67.5deg	67.5deg	67.5deg
Seat Tube Angle	73deg	73deg	73deg	73deg	73deg
Head Tube Length	107mm	107mm	107mm	107mm	107mm
Bottom Bracket Drop	59.2mm	59.2mm	59.2mm	59.2mm	59.2mm
Bottom Bracket Height	328mm	328mm	328mm	328mm	328mm
Chainstay Length	429mm	429mm	429mm	429mm	429mm
Chainstay Length Max	415mm	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	424.9mm	424.9mm	424.9mm	424.9mm	424.9mm
Chainstay Length Horizontal Max	410.8mm	410.8mm	410.8mm	410.8mm	410.8mm
Front-Center	672.4mm	692.3mm	711.2mm	727.2mm	742.1mm
Front-Center Horizontal	669.7mm	689.7mm	708.7mm	724.7mm	739.7mm
Wheelbase	1094.6mm	1114.6mm	1133.6mm	1149.6mm	1164.6mm
Wheelbase Max	1080.5mm	1100.5mm	1119.5mm	1135.5mm	1150.5mm
Fork Offset/Rake	51mm	51mm	51mm	51mm	51mm
Fork Length (Axle-To-Crown)	541mm	541mm	541mm	541mm	541mm
Trail	105.2mm very high	105.2mm very high	105.2mm very high	105.2mm very high	105.2mm very high
Mechanical Trail	97.2mm	97.2mm	97.2mm	97.2mm	97.2mm
Wheel Flop	37.2mm	37.2mm	37.2mm	37.2mm	37.2mm
Tire to Pedal Spindle	115.2mm 170 mm cranks	135.1mm 170 mm cranks	154mm 170 mm cranks	170mm 170 mm cranks	184.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	158mm 170 mm cranks	158mm 170 mm cranks	158mm 170 mm cranks	158mm 170 mm cranks	158mm 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.

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Source:https://us.chromagbikes.com/pages/2015-rootdown

Geometry