2022 Rotor Bikes Humboldt Base

	XS	S	M	L	XL
Stack	558mm	572mm	596mm	624mm	653mm
Reach	380mm	401mm	419mm	436mm	453mm
Stack to Reach Ratio	1.47:1	1.43:1	1.42:1	1.43:1	1.44:1
Seat Tube Length, C-T	480mm	520mm	560mm	600mm	640mm
Top Tube Length, Effective/Horizontal Unknown	540mm	565mm	590mm	615mm	640mm
Top Tube Slope	10.7deg	7.6deg	5.8deg	4.5deg	3.4deg
Head Tube Angle	71deg	71deg	71deg	71deg	71deg
Seat Tube Angle	74deg	74deg	74deg	74deg	74deg
Head Tube Length	110mm	125mm	150mm	180mm	210mm
Bottom Bracket Drop	74mm	74mm	74mm	74mm	74mm
Bottom Bracket Height	282mm	282mm	282mm	282mm	282mm
Chainstay Length Horizontal	450mm	450mm	450mm	450mm	450mm
Front-Center	598.6mm	624.4mm	650.2mm	677.1mm	703.9mm
Front-Center Horizontal	594mm	620mm	646mm	673mm	700mm
Wheelbase	1044mm	1070mm	1096mm	1123mm	1150mm
Fork Offset/Rake	44.8mm	44.9mm	44.7mm	45mm	45mm
Fork Length (Axle-To-Crown)	410mm	410mm	410mm	410mm	410mm
Trail	75.2mm high	75.1mm high	75.3mm high	75mm high	75mm high
Mechanical Trail	71.1mm	71mm	71.2mm	70.9mm	70.9mm
Wheel Flop	23.2mm	23.1mm	23.2mm	23.1mm	23.1mm
Tire to Pedal Spindle	72.6mm 170 mm cranks	98.4mm 170 mm cranks	124.2mm 170 mm cranks	151.1mm 170 mm cranks	177.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	112mm 170 mm cranks	112mm 170 mm cranks	112mm 170 mm cranks	112mm 170 mm cranks	112mm 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.rotorbikes.com/wp-content/uploads/2022/03/Rotor_Humboldt_Geo_Techdata.pdf

Geometry