2023 Giant Bicycles FastRoad AR Base
- Category
- Fitness
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Disc brake
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 ScaleCategory Trend
FitnessSource:https://www.giant-bicycles.com/int/bikes-fastroad-ar-2023