2016 Pinnacle Arkose Four

	S	M	L	XL
Stack	561mm	582mm	600mm	625mm
Reach	379mm	388mm	397mm	405mm
Stack to Reach Ratio	1.48:1	1.5:1	1.51:1	1.54:1
Seat Tube Length, C-T	480mm	510mm	540mm	570mm
Top Tube Length, Effective/Horizontal Center	540mm	555mm	570mm	585mm
Top Tube Slope	11deg	9.9deg	8.4deg	7.8deg
Head Tube Angle	71deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74deg	74deg	74deg	74deg
Head Tube Length	136mm	155mm	175mm	200mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm
Bottom Bracket Height	276mm	276mm	276mm	276mm
Chainstay Length	425mm	425mm	425mm	425mm
Chainstay Length Horizontal	419.2mm	419.2mm	419.2mm	419.2mm
Front-Center	605mm	615mm	630mm	648mm
Front-Center Horizontal	600.9mm	611mm	626.1mm	644.2mm
Wheelbase	1020.1mm	1030.2mm	1045.3mm	1063.4mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	397mm	397mm	397mm	397mm
Trail	66.3mm high	63.1mm mid/neutral	63.1mm mid/neutral	63.1mm mid/neutral
Mechanical Trail	62.7mm	59.8mm	59.8mm	59.8mm
Wheel Flop	20.4mm	19mm	19mm	19mm
Standover Height	764mm	787mm	810mm	837mm
Tire to Pedal Spindle	89mm 170 mm cranks	99mm 170 mm cranks	109mm 175 mm cranks	127mm 175 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	106mm 170 mm cranks	101mm 175 mm cranks	101mm 175 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://geometrygeeks.bike/bike/pinnacle-arkose-2016/

Geometry