2019 Rocky Mountain Instinct BC Edition

	Small	Medium	Large	Extra Large
Stack	607mm	612mm	621mm	630mm
Reach	407mm	431mm	454mm	481mm
Stack to Reach Ratio	1.49:1	1.42:1	1.37:1	1.31:1
Seat Tube Length, Unknown	392mm	432mm	470mm	508mm
Top Tube Length, Effective/Horizontal Unknown	577mm	602mm	627mm	657mm
Top Tube Slope	24.1deg	19.7deg	16.2deg	12.8deg
Head Tube Angle	65.9deg	65.9deg	65.9deg	65.9deg
Seat Tube Angle	74.4deg	74.4deg	74.4deg	74.4deg
Head Tube Length	95mm	100mm	110mm	120mm
Bottom Bracket Drop	19mm	19mm	19mm	19mm
Bottom Bracket Height	355.5mm	355.5mm	355.5mm	355.5mm
Chainstay Length	435mm	435mm	435mm	435mm
Chainstay Length Horizontal	434.6mm	434.6mm	434.6mm	434.6mm
Front-Center	726.7mm	752.7mm	778.7mm	810.6mm
Front-Center Horizontal	726.4mm	752.4mm	778.4mm	810.4mm
Wheelbase	1161mm	1187mm	1213mm	1245mm
Fork Offset/Rake	51.5mm	51.3mm	50.3mm	51.2mm
Fork Length, Unknown	160mm	160mm	160mm	160mm
Trail	111.1mm very high	111.4mm very high	112.4mm very high	111.4mm very high
Mechanical Trail	101.5mm	101.7mm	102.6mm	101.7mm
Wheel Flop	41.4mm	41.5mm	41.9mm	41.5mm
Standover Height	828mm	828mm	828mm	828mm
Tire to Pedal Spindle	182.2mm 170 mm cranks	208.2mm 170 mm cranks	234.2mm 170 mm cranks	266.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	185.5mm 170 mm cranks	185.5mm 170 mm cranks	185.5mm 170 mm cranks	185.5mm 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://www.bikes.com/en/bikes/instinct-bc-edition/2019

Geometry