2019 Jamis Bicycles Aurora Base

	47	50	53	55	57	59	62
Stack	518mm	538mm	557mm	571mm	585mm	602mm	618mm
Reach	371mm	386mm	381mm	386mm	385mm	389mm	393mm
Stack to Reach Ratio	1.4:1	1.39:1	1.46:1	1.48:1	1.52:1	1.55:1	1.57:1
Seat Tube Length, C-T	470mm	500mm	530mm	550mm	570mm	590mm	620mm
Top Tube Length, Effective/Horizontal Center	519mm	540mm	551mm	561mm	575mm	584mm	593mm
Top Tube Slope	7.5deg	6.3deg	5.4deg	4.7deg	4.4deg	4.1deg	2.8deg
Head Tube Angle	70deg	71.5deg	71.5deg	71.5deg	71.5deg	72deg	72.5deg
Seat Tube Angle	74deg	74deg	73deg	73deg	72deg	72deg	72deg
Head Tube Length	100mm	115mm	135mm	150mm	165mm	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	600.4mm	601.4mm	612.3mm	615.3mm	619.3mm	623.2mm
Front-Center Horizontal	588.8mm	596.8mm	597.8mm	608.8mm	611.8mm	615.8mm	619.8mm
Wheelbase	1024mm	1032mm	1033mm	1044mm	1047mm	1051mm	1055mm
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	726mm	796mm	810mm	826mm	841mm	859mm	881mm
Tire to Pedal Spindle	79.4mm 170 mm cranks	87.4mm 170 mm cranks	88.4mm 170 mm cranks	99.3mm 170 mm cranks	97.3mm 175 mm cranks	101.3mm 175 mm cranks	105.2mm 175 mm cranks
Pedal Spindle to Ground Clearance	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	103mm 175 mm cranks	103mm 175 mm cranks	103mm 175 mm cranks

	47	50	53	55	57	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	1718mm	1719mm	1730mm	1733mm	1737mm	1741mm
Crank Length	170mm	170mm	170mm	170mm	175mm	175mm	175mm
Handlebar Width	380mm	400mm	400mm	420mm	440mm	440mm	440mm
Stem Length	90mm	90mm	105mm	105mm	115mm	115mm	115mm
Stem Angle	10deg	10deg	10deg	10deg	10deg	10deg	10deg

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:https://www.jamisbikes.com/usa/aurora.html

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2019 Jamis Bicycles Aurora Base

Geometry

Base Build

Stack and Reach vs. Category Trend