2018 Felt Bicycles Surplus 70 Base

	14	16	18	20	22
Stack	653mm	653mm	662mm	672mm	681mm
Reach	373mm	390mm	408mm	425mm	442mm
Stack to Reach Ratio	1.75:1	1.67:1	1.62:1	1.58:1	1.54:1
Seat Tube Length, C-C	360mm	400mm	450mm	500mm	550mm
Top Tube Length, Effective/Horizontal HT Top	570mm	590mm	610mm	630mm	650mm
Head Tube Angle	68deg	68deg	68deg	68deg	68deg
Seat Tube Angle	73deg	73deg	73deg	73deg	73deg
Head Tube Length	100mm	110mm	120mm	130mm	140mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm	65mm
Bottom Bracket Height	298.1mm	298.1mm	298.1mm	298.1mm	298.1mm
Chainstay Length	440mm	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	435.2mm	435.2mm	435.2mm	435.2mm	435.2mm
Front-Center	665mm	686mm	707mm	728mm	749mm
Front-Center Horizontal	661.8mm	682.8mm	703.8mm	724.8mm	745.8mm
Wheelbase	1097mm	1118mm	1139mm	1160mm	1181mm
Fork Offset/Rake	51mm	51mm	51mm	51mm	51mm
Trail	91.7mm very high	91.7mm very high	91.7mm very high	91.7mm very high	91.7mm very high
Mechanical Trail	85mm	85mm	85mm	85mm	85mm
Wheel Flop	31.9mm	31.9mm	31.9mm	31.9mm	31.9mm
Standover Height	660mm	703mm	749mm	792mm	819mm
Tire to Pedal Spindle	126.9mm 175 mm cranks	147.9mm 175 mm cranks	168.9mm 175 mm cranks	189.9mm 175 mm cranks	210.9mm 175 mm cranks
Pedal Spindle to Ground Clearance	123.1mm 175 mm cranks	123.1mm 175 mm cranks	123.1mm 175 mm cranks	123.1mm 175 mm cranks	123.1mm 175 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://99spokes.com/en-EU/bikes/felt/2018/surplus-70

Geometry