2017 Transition Bikes Patrol Base

	S	M	L	XL
Stack	591mm	600mm	609mm	618mm
Reach	406mm	432mm	457mm	483mm
Stack to Reach Ratio	1.46:1	1.39:1	1.33:1	1.28:1
Seat Tube Length, C-T	393mm	419mm	457mm	495mm
Top Tube Length, Effective/Horizontal Center	555mm	583mm	613mm	641mm
Top Tube Slope	22.7deg	19.9deg	16.2deg	12.9deg
Head Tube Angle	65deg	65deg	65deg	65deg
Seat Tube Angle	76deg	75.4deg	74.9deg	74.5deg
Head Tube Length	100mm	110mm	120mm	130mm
Bottom Bracket Drop	15mm	15mm	15mm	15mm
Bottom Bracket Height	340.5mm	340.5mm	340.5mm	340.5mm
Chainstay Length	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	429.7mm	429.7mm	429.7mm	429.7mm
Front-Center	721.4mm	751.4mm	780.4mm	810.4mm
Front-Center Horizontal	721.3mm	751.3mm	780.3mm	810.3mm
Wheelbase	1151mm	1181mm	1210mm	1240mm
Fork Offset/Rake	42.3mm	42.1mm	41.9mm	41.8mm
Fork Length (Axle-To-Crown)	552mm	552mm	552mm	552mm
Trail	119.1mm very high	119.3mm very high	119.5mm very high	119.7mm very high
Mechanical Trail	107.9mm	108.1mm	108.3mm	108.5mm
Wheel Flop	45.6mm	45.7mm	45.8mm	45.9mm
Tire to Pedal Spindle	195.9mm 170 mm cranks	225.9mm 170 mm cranks	254.9mm 170 mm cranks	284.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	170.5mm 170 mm cranks	170.5mm 170 mm cranks	170.5mm 170 mm cranks	170.5mm 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:Manufacturer

Geometry