2009 Felt Bicycles AR4 Base

	51	54	56	58	61
Seat Tube Length, C-T	510mm	540mm	560mm	580mm	610mm
Top Tube Length, Effective/Horizontal Center	530mm	545mm	560mm	575mm	603mm
Head Tube Angle	72.5deg	73deg	73.5deg	73.5deg	74deg
Seat Tube Angle	74.5deg	73.5deg	73.13deg	73deg	73deg
Head Tube Length	120mm	140mm	160mm	180mm	200mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	264mm	264mm	264mm	264mm	264mm
Chainstay Length	412mm	412mm	415mm	415mm	415mm
Chainstay Length Horizontal	406mm	406mm	409.1mm	409.1mm	409.1mm
Front-Center	578mm	581mm	584mm	598mm	620mm
Front-Center Horizontal	574mm	577mm	580mm	593mm	616mm
Wheelbase	980mm	983mm	989mm	1002mm	1025mm
Fork Offset/Rake	45mm	45mm	43mm	43mm	43mm
Trail	58.1mm mid/neutral	55.1mm mid/neutral	54.1mm mid/neutral	54.1mm mid/neutral	51mm mid/neutral
Mechanical Trail	55.4mm	52.7mm	51.9mm	51.9mm	49.1mm
Wheel Flop	16.7mm	15.4mm	14.7mm	14.7mm	13.5mm
Standover Height	749mm	774mm	794mm	798mm	816mm
Tire to Pedal Spindle	79mm 165 mm cranks	77mm 170 mm cranks	77.5mm 172.5 mm cranks	89mm 175 mm cranks	111mm 175 mm cranks
Pedal Spindle to Ground Clearance	99mm 165 mm cranks	94mm 170 mm cranks	91.5mm 172.5 mm cranks	89mm 175 mm cranks	89mm 175 mm cranks

Source:https://feltbicycles.com/pages/archived-bikes

Geometry