2018 Ritchey Design Outback Base

	XS	S	M	L	XL
Stack	515mm	531mm	557mm	576mm	596mm
Reach	380mm	385mm	388mm	395mm	401mm
Stack to Reach Ratio	1.36:1	1.38:1	1.44:1	1.46:1	1.49:1
Seat Tube Length, C-T	450mm	475mm	500mm	525mm	550mm
Top Tube Length, Effective/Horizontal Center	523mm	537mm	553mm	566mm	583mm
Top Tube Length, Actual C-C	511mm	525mm	539mm	553mm	569mm
Top Tube Slope	6.3deg	5.5deg	6.5deg	5.7deg	5.5deg
Head Tube Angle	72deg	72deg	72deg	72deg	73deg
Seat Tube Angle	75deg	74deg	74deg	74deg	73deg
Head Tube Length	100mm	115mm	140mm	160mm	180mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	281mm	281mm	281mm	281mm	281mm
Chainstay Length	437mm	437mm	437mm	437mm	437mm
Chainstay Length Horizontal	431.4mm	431.4mm	431.4mm	431.4mm	431.4mm
Front-Center	587.8mm	592.8mm	599.7mm	612.7mm	619.6mm
Front-Center Horizontal	583.6mm	588.6mm	595.6mm	608.6mm	615.6mm
Wheelbase	1015mm	1020mm	1027mm	1040mm	1047mm
Fork Offset/Rake	47mm	47mm	47mm	47mm	47mm
Fork Length (Axle-To-Crown)	383mm	383mm	383mm	383mm	383mm
Trail	64.6mm mid/neutral	64.6mm mid/neutral	64.6mm mid/neutral	64.6mm mid/neutral	58.2mm mid/neutral
Mechanical Trail	61.5mm	61.5mm	61.5mm	61.5mm	55.6mm
Wheel Flop	19mm	19mm	19mm	19mm	16.3mm
Standover Height	731mm	752mm	776mm	798mm	820mm
Tire to Pedal Spindle	66.8mm 170 mm cranks	71.8mm 170 mm cranks	78.7mm 170 mm cranks	91.7mm 170 mm cranks	98.6mm 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://us.ritcheylogic.com/media/itm/magb1/Productfiles/97500008002/1523374642_ritchey-outback-geometry.pdf

Geometry