2019 509 Cycles Necessary Evil Base

	50	53	55	57	59
Stack	516mm	537mm	564mm	583mm	602mm
Reach	362mm	376mm	383mm	392mm	401mm
Stack to Reach Ratio	1.43:1	1.43:1	1.47:1	1.49:1	1.5:1
Seat Tube Length, Unknown	460mm	505mm	530mm	560mm	580mm
Top Tube Length, Effective/Horizontal Unknown	510mm	535mm	555mm	575mm	590mm
Top Tube Slope	8.5deg	5.7deg	6deg	4.9deg	4.7deg
Head Tube Angle	70.5deg	71deg	72deg	72deg	72.5deg
Seat Tube Angle	74.5deg	74deg	73.5deg	73deg	73deg
Head Tube Length	105mm	125mm	150mm	170mm	190mm
Bottom Bracket Drop	67mm	67mm	67mm	67mm	67mm
Bottom Bracket Height	282mm	282mm	282mm	282mm	282mm
Chainstay Length	435mm	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	429.8mm	429.8mm	429.8mm	429.8mm	429.8mm
Front-Center	578.1mm	595mm	600.9mm	614.9mm	633.7mm
Front-Center Horizontal	574.2mm	591.2mm	597.2mm	611.2mm	630.2mm
Wheelbase	1004mm	1021mm	1027mm	1041mm	1060mm
Fork Offset/Rake	50.1mm	50.5mm	50.1mm	49mm	57.7mm
Fork Length, Unknown	395mm	395mm	395mm	395mm	395mm
Trail	70.4mm high	66.8mm high	60.7mm mid/neutral	61.9mm mid/neutral	49.5mm mid/neutral
Mechanical Trail	66.4mm	63.2mm	57.7mm	58.8mm	47.2mm
Wheel Flop	22.2mm	20.6mm	17.8mm	18.2mm	14.2mm
Tire to Pedal Spindle	59.1mm 170 mm cranks	76mm 170 mm cranks	81.9mm 170 mm cranks	95.9mm 170 mm cranks	114.7mm 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://509cycles.com/products/necessary-evil-frame/

Geometry