2018 Brother Cycles Swift Frameset

	52cm	54cm	56cm	58cm	60cm
Stack	507.6mm	536mm	555mm	564.4mm	582.3mm
Reach	393.4mm	396mm	401mm	408.5mm	413.3mm
Stack to Reach Ratio	1.29:1	1.35:1	1.38:1	1.38:1	1.41:1
Seat Tube Length, C-TTT	505mm	525mm	545mm	565mm	585mm
Top Tube Length, Effective/Horizontal Center	530mm	545mm	555mm	565mm	580mm
Top Tube Length, Actual C-C	530mm	545mm	555mm	565mm	580mm
Top Tube Slope	0deg	0deg	0deg	0deg	0deg
Head Tube Angle	74deg	74deg	74.5deg	74.5deg	74.5deg
Seat Tube Angle	75deg	74.5deg	74.5deg	74.5deg	74deg
Head Tube Length	89.4mm	119mm	137.1mm	146.9mm	165.5mm
Bottom Bracket Drop	58mm	58mm	58mm	58mm	58mm
Bottom Bracket Height	281mm	281mm	281mm	281mm	281mm
Chainstay Length	387mm	388mm	388mm	388mm	390mm
Chainstay Length Horizontal	382.6mm	383.6mm	383.6mm	383.6mm	385.7mm
Front-Center	562.4mm	572.3mm	578.3mm	588.2mm	598.2mm
Front-Center Horizontal	559.4mm	569.4mm	575.4mm	585.4mm	595.3mm
Wheelbase	942mm	953mm	959mm	969mm	981mm
Fork Offset/Rake	35mm	35mm	35mm	35mm	35mm
Fork Length (Axle-To-Crown)	370mm	370mm	370mm	370mm	370mm
Trail	60.8mm mid/neutral	60.8mm mid/neutral	57.7mm mid/neutral	57.7mm mid/neutral	57.7mm mid/neutral
Mechanical Trail	58.4mm	58.4mm	55.6mm	55.6mm	55.6mm
Wheel Flop	16.1mm	16.1mm	14.9mm	14.9mm	14.9mm
Tire to Pedal Spindle	53.4mm 170 mm cranks	63.3mm 170 mm cranks	69.3mm 170 mm cranks	79.2mm 170 mm cranks	89.2mm 170 mm cranks
Pedal Spindle to Ground Clearance	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 170 mm cranks	111mm 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.brothercycles.com/shop/frames/swift/

Geometry