2017 Gunnar Cycles USA Fastlane Base

	48	50	52	54	56	58	60	62	64	66	68
Stack	567mm	573mm	582mm	587mm	601mm	620mm	638mm	657mm	681mm	700mm	714mm
Reach	370mm	375mm	375mm	374mm	384mm	386mm	385mm	384mm	388mm	394mm	395mm
Stack to Reach Ratio	1.53:1	1.53:1	1.55:1	1.57:1	1.57:1	1.61:1	1.66:1	1.71:1	1.76:1	1.78:1	1.81:1
Seat Tube Length, C-T	460mm	480mm	500mm	520mm	540mm	560mm	580mm	600mm	620mm	640mm	660mm
Top Tube Length, Effective/Horizontal HT Top	525mm	535mm	545mm	555mm	565mm	575mm	585mm	595mm	605mm	615mm	620mm
Top Tube Slope	14.1deg	12.4deg	11.2deg	9.6deg	8.8deg	8.7deg	8.6deg	8.5deg	8.9deg	8.7deg	8.1deg
Head Tube Angle	71.5deg	71.5deg	72deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	75.5deg	75deg	74deg	74deg	73.5deg	73deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg
Head Tube Length	117mm	122mm	130mm	132mm	146mm	166mm	185mm	205mm	230mm	250mm	265mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm	75mm	75mm	75mm	75mm	75mm	75mm	75mm
Bottom Bracket Height	274mm	274mm	274mm	274mm	274mm	274mm	274mm	274mm	274mm	274mm	274mm
Chainstay Length	425mm	425mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Max	425mm	425mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	418.3mm	418.3mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm
Chainstay Length Horizontal Max	418.3mm	418.3mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm	423.4mm
Front-Center	594.4mm	598.4mm	594.3mm	597.3mm	602.3mm	608.2mm	612.2mm	622.1mm	632.1mm	642mm	647mm
Front-Center Horizontal	589.7mm	593.7mm	589.6mm	592.6mm	597.6mm	603.6mm	607.6mm	617.6mm	627.6mm	637.6mm	642.6mm
Wheelbase	1008mm	1012mm	1013mm	1016mm	1021mm	1027mm	1031mm	1041mm	1051mm	1061mm	1066mm
Wheelbase Max	1008mm	1012mm	1013mm	1016mm	1021mm	1027mm	1031mm	1041mm	1051mm	1061mm	1066mm
Fork Offset/Rake	53mm	50mm	48mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm	45mm
Fork Length (Axle-To-Crown)	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm	405mm
Trail	60.9mm mid/neutral	64.1mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral	62.9mm mid/neutral
Mechanical Trail	57.7mm	60.7mm	59.9mm	60mm	60mm	60mm	60mm	60mm	60mm	60mm	60mm
Wheel Flop	18.3mm	19.3mm	18.5mm	18mm	18mm	18mm	18mm	18mm	18mm	18mm	18mm
Standover Height	756mm	768mm	781mm	793mm	809mm	827mm	845mm	864mm	886mm	905mm	921mm
Tire to Pedal Spindle	75.4mm 170 mm cranks	79.4mm 170 mm cranks	75.3mm 170 mm cranks	78.3mm 170 mm cranks	83.3mm 170 mm cranks	89.2mm 170 mm cranks	93.2mm 170 mm cranks	103.1mm 170 mm cranks	113.1mm 170 mm cranks	123mm 170 mm cranks	128mm 170 mm cranks
Pedal Spindle to Ground Clearance	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks	104mm 170 mm cranks

	48	50	52	54	56	58	60	62	64	66	68
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	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm
Tire Width Max	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm
Tire Outer Diameter	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm
Bike Length with Tires	1706mm	1710mm	1711mm	1714mm	1719mm	1725mm	1729mm	1739mm	1749mm	1759mm	1764mm

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

All-road/Gravel

Source:Bike Counterculture Geometry Database

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2017 Gunnar Cycles USA Fastlane Base

Geometry

Base Build

Stack and Reach vs. Category Trend