2026 Priority Bicycles Apollo Flat Bar

	Small	Medium	Large	X-Large
Stack	548mm	562mm	591mm	600mm
Reach	387mm	408mm	417mm	431mm
Stack to Reach Ratio	1.42:1	1.38:1	1.42:1	1.39:1
Seat Tube Length, C-T	430mm	495mm	555mm	600mm
Top Tube Length, Effective/Horizontal HT Top	560mm	585mm	600mm	620mm
Top Tube Slope	15deg	9.2deg	6deg	2.6deg
Head Tube Angle	69deg	69deg	69deg	69deg
Seat Tube Angle	72.5deg	72.5deg	72.5deg	72.5deg
Head Tube Length	135mm	150mm	170mm	190mm
Bottom Bracket Drop	75mm	75mm	75mm	75mm
Bottom Bracket Height	276mm	276mm	276mm	276mm
Chainstay Length	438mm	438mm	438mm	438mm
Chainstay Length Horizontal	431.5mm	431.5mm	431.5mm	431.5mm
Front-Center	622mm	647.8mm	663.7mm	685.6mm
Front-Center Horizontal	617.5mm	643.5mm	659.5mm	681.5mm
Wheelbase	1049mm	1075mm	1091mm	1113mm
Fork Offset/Rake	50mm	50mm	50mm	50mm
Fork Length (Axle-To-Crown)	400mm	400mm	400mm	400mm
Trail	81.2mm very high	81.2mm very high	81.2mm very high	81.2mm very high
Mechanical Trail	75.8mm	75.8mm	75.8mm	75.8mm
Wheel Flop	27.2mm	27.2mm	27.2mm	27.2mm
Standover Height	711.2mm	736.6mm	787.4mm	812.8mm
Tire to Pedal Spindle	101mm 170 mm cranks	126.8mm 170 mm cranks	142.7mm 170 mm cranks	164.6mm 170 mm cranks
Pedal Spindle to Ground Clearance	106mm 170 mm cranks	106mm 170 mm cranks	106mm 170 mm cranks	106mm 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.prioritybicycles.com/products/priority-apollo

Geometry