2009 Felt Bicycles AR4 Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Rim brake

Geometry

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

Base Build

51
54
56
58
61
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
23mm
23mm
23mm
23mm
23mm
Tire Outer Diameter
668mm
668mm
668mm
668mm
668mm
Bike Length with Tires
1648mm
1651mm
1657mm
1670mm
1693mm
Crank Length
165mm
170mm
172.5mm
175mm
175mm
Stem Length
80mm
100mm
100mm
110mm
120mm
Source:https://feltbicycles.com/pages/archived-bikes