2017 Jamis Bicycles Aurora Base

	47	50	53	57	55	59	62
Stack	521mm	541mm	560mm	588mm	574mm	605mm	621mm
Reach	368mm	386mm	380mm	376mm	381mm	381mm	389mm
Stack to Reach Ratio	1.42:1	1.4:1	1.47:1	1.56:1	1.51:1	1.59:1	1.6:1
Seat Tube Length, C-T	470mm	500mm	530mm	570mm	550mm	590mm	620mm
Top Tube Length, Effective/Horizontal Center	520mm	542mm	552mm	567mm	557mm	577mm	590mm
Top Tube Slope	7.9deg	6.6deg	5.7deg	4.8deg	5.1deg	4.5deg	3.1deg
Head Tube Angle	70deg	71.5deg	71.5deg	71.5deg	71.5deg	72deg	72.5deg
Seat Tube Angle	74deg	74deg	73deg	72deg	73deg	72deg	72deg
Head Tube Length	100mm	115mm	135mm	165mm	150mm	180mm	195mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm	65mm	65mm	65mm
Bottom Bracket Height	278mm	278mm	278mm	278mm	278mm	278mm	278mm
Chainstay Length	440mm	440mm	440mm	440mm	440mm	440mm	440mm
Chainstay Length Horizontal	435.2mm	435.2mm	435.2mm	435.2mm	435.2mm	435.2mm	435.2mm
Front-Center	592.4mm	601.4mm	602.4mm	607.3mm	607.3mm	612.3mm	619.3mm
Front-Center Horizontal	588.8mm	597.8mm	598.8mm	603.8mm	603.8mm	608.8mm	615.8mm
Wheelbase	1024mm	1033mm	1034mm	1039mm	1039mm	1044mm	1051mm
Fork Offset/Rake	50mm	50mm	50mm	50mm	50mm	50mm	50mm
Trail	71.6mm high	62mm mid/neutral	62mm mid/neutral	62mm mid/neutral	62mm mid/neutral	58.9mm mid/neutral	55.7mm mid/neutral
Mechanical Trail	67.3mm	58.8mm	58.8mm	58.8mm	58.8mm	56mm	53.1mm
Wheel Flop	23mm	18.7mm	18.7mm	18.7mm	18.7mm	17.3mm	16mm
Standover Height	710mm	784mm	808mm	842mm	827mm	860mm	883mm
Tire to Pedal Spindle	79.4mm 170 mm cranks	88.4mm 170 mm cranks	89.4mm 170 mm cranks	94.3mm 170 mm cranks	94.3mm 170 mm cranks	99.3mm 170 mm cranks	106.3mm 170 mm cranks
Pedal Spindle to Ground Clearance	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks

	47	50	53	57	55	59	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
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm	32mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1710mm	1719mm	1720mm	1725mm	1725mm	1730mm	1737mm

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

Touring

Source:http://www.jamisbikes.com/usa/aurora.html

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2017 Jamis Bicycles Aurora Base

Geometry

Base Build

Stack and Reach vs. Category Trend