2023 Giant Bicycles FastRoad AR Base

Category
Fitness
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Aluminum
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category
Average stack and reachvs category

Geometry

XS
S
M
ML
L
XL
Stack
533mm
552mm
578mm
597mm
623mm
646mm
Reach
387mm
396mm
404mm
407mm
419mm
432mm
Stack to Reach Ratio
1.38:1
1.39:1
1.43:1
1.47:1
1.49:1
1.5:1
Seat Tube Length, Unknown
435mm
455mm
475mm
495mm
525mm
555mm
Top Tube Length, Effective/Horizontal Unknown
545mm
560mm
575mm
590mm
610mm
630mm
Top Tube Slope
12.8deg
12.4deg
12.8deg
12.6deg
11.9deg
11deg
Head Tube Angle
70.5deg
70.5deg
71deg
71deg
71.5deg
71.5deg
Seat Tube Angle
73.5deg
73.5deg
73.5deg
73deg
73deg
73deg
Head Tube Length
110mm
130mm
155mm
175mm
200mm
225mm
Bottom Bracket Drop
75mm
75mm
75mm
75mm
75mm
75mm
Bottom Bracket Height
276mm
276mm
276mm
276mm
276mm
276mm
Chainstay Length
435mm
435mm
435mm
435mm
435mm
435mm
Chainstay Length Horizontal
428.5mm
428.5mm
428.5mm
428.5mm
428.5mm
428.5mm
Front-Center
607.2mm
623mm
634mm
644.9mm
659.8mm
680.7mm
Front-Center Horizontal
602.5mm
618.5mm
629.5mm
640.5mm
655.5mm
676.5mm
Wheelbase
1031mm
1047mm
1058mm
1069mm
1084mm
1105mm
Fork Offset/Rake
50mm
50mm
50mm
50mm
50mm
50mm
Trail
71.3mm
high
71.3mm
high
68mm
high
68mm
high
64.7mm
mid/​neutral
64.7mm
mid/​neutral
Mechanical Trail
67.2mm
67.2mm
64.3mm
64.3mm
61.4mm
61.4mm
Wheel Flop
22.4mm
22.4mm
20.9mm
20.9mm
19.5mm
19.5mm
Standover Height
718mm
736mm
756mm
773mm
800mm
826mm
Tire to Pedal Spindle
86.2mm
170 mm cranks
102mm
170 mm cranks
113mm
170 mm cranks
121.4mm
172.5 mm cranks
136.3mm
172.5 mm cranks
157.2mm
172.5 mm cranks
Pedal Spindle to Ground Clearance
106mm
170 mm cranks
106mm
170 mm cranks
106mm
170 mm cranks
103.5mm
172.5 mm cranks
103.5mm
172.5 mm cranks
103.5mm
172.5 mm cranks

Base Build

XS
S
M
ML
L
XL
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
700C/29 in
622 mm BSD
Tire Width
40mm
40mm
40mm
40mm
40mm
40mm
Tire Width Max
42mm
42mm
42mm
42mm
42mm
42mm
Tire Outer Diameter
702mm
702mm
702mm
702mm
702mm
702mm
Bike Length with Tires
1733mm
1749mm
1760mm
1771mm
1786mm
1807mm
Crank Length
170mm
170mm
170mm
172.5mm
172.5mm
172.5mm
Handlebar Width
640mm
640mm
680mm
680mm
680mm
680mm
Stem Length
70mm
80mm
90mm
90mm
100mm
110mm

Published Sizing Recommendations

Height
155 cm
to
165 cm
160 cm
to
170 cm
170 cm
to
180 cm
175 cm
to
185 cm
180 cm
to
190 cm
190 cm
to
200 cm

Stack and Reach vs. Category Trend

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.

Learn more about the Upright/Aggressive Scale
Category Trend
Fitness
Source:https://www.giant-bicycles.com/int/bikes-fastroad-ar-2023