2017-2018 Surly Bikes Pacer Base

	42	46	50	52	54	56	58	60	62
Stack	499mm	515mm	517mm	523mm	539mm	556mm	576mm	593mm	612mm
Reach	377mm	378mm	385mm	389mm	390mm	395mm	404mm	404mm	413mm
Stack to Reach Ratio	1.32:1	1.36:1	1.34:1	1.34:1	1.38:1	1.41:1	1.43:1	1.47:1	1.48:1
Seat Tube Length, C-TTT	420mm	460mm	500mm	520mm	540mm	560mm	580mm	600mm	620mm
Top Tube Length, Effective/Horizontal Center	508.5mm	514.3mm	526.4mm	540mm	555mm	565mm	579.4mm	590mm	605mm
Top Tube Slope	8.5deg	5.8deg	1.7deg	0.4deg	0.2deg	0.1deg	0.2deg	0.2deg	0.2deg
Head Tube Angle	71deg	71.5deg	72deg	72.5deg	72.5deg	73deg	73.5deg	73.5deg	74deg
Seat Tube Angle	75.5deg	75.5deg	74.5deg	74deg	73.5deg	73deg	73deg	72.5deg	72.5deg
Head Tube Length	84mm	99mm	99mm	104mm	119mm	136mm	154mm	171mm	189mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm	72mm	72mm	72mm	72mm	72mm
Bottom Bracket Height	271mm	271mm	271mm	271mm	271mm	271mm	271mm	271mm	271mm
Chainstay Length	410mm	410mm	410mm	410mm	415mm	415mm	415mm	415mm	415mm
Chainstay Length Max	410mm	410mm	410mm	410mm	415mm	415mm	415mm	415mm	415mm
Chainstay Length Horizontal	403.6mm	403.6mm	403.6mm	403.6mm	408.7mm	408.7mm	408.7mm	408.7mm	408.7mm
Chainstay Length Horizontal Max	403.6mm	403.6mm	403.6mm	403.6mm	408.7mm	408.7mm	408.7mm	408.7mm	408.7mm
Front-Center	581.8mm	583.8mm	586.8mm	587.8mm	588.7mm	594.7mm	604.6mm	609.6mm	618.5mm
Front-Center Horizontal	577.4mm	579.4mm	582.4mm	583.4mm	584.3mm	590.3mm	600.3mm	605.3mm	614.3mm
Wheelbase	981mm	983mm	986mm	987mm	993mm	999mm	1009mm	1014mm	1023mm
Wheelbase Max	981mm	983mm	986mm	987mm	993mm	999mm	1009mm	1014mm	1023mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	376mm	376mm	376mm	376mm	376mm	376mm	376mm	376mm	376mm
Trail	65.2mm high	62mm mid/neutral	58.9mm mid/neutral	55.7mm mid/neutral	61mm mid/neutral	57.8mm mid/neutral	54.7mm mid/neutral	54.7mm mid/neutral	51.5mm mid/neutral
Mechanical Trail	61.7mm	58.8mm	56mm	53.1mm	58.1mm	55.3mm	52.4mm	52.4mm	49.5mm
Wheel Flop	20.1mm	18.7mm	17.3mm	16mm	17.5mm	16.2mm	14.9mm	14.9mm	13.7mm
Standover Height	724mm	745mm	764mm	776mm	794mm	812mm	831mm	848mm	867mm
Tire to Pedal Spindle	68.8mm 170 mm cranks	70.8mm 170 mm cranks	73.8mm 170 mm cranks	74.8mm 170 mm cranks	75.7mm 170 mm cranks	81.7mm 170 mm cranks	91.6mm 170 mm cranks	96.6mm 170 mm cranks	105.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks

	42	46	50	52	54	56	58	60	62
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Width Max	32mm	32mm	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1667mm	1669mm	1672mm	1673mm	1679mm	1685mm	1695mm	1700mm	1709mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Endurance Road

Source:Bike Counterculture Geometry Database

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2017-2018 Surly Bikes Pacer Base

Geometry

Base Build

Stack and Reach vs. Category Trend