2025 Giant Bicycles Contend AR 1
- Category
- Endurance Road
- Design
- Drop 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 | Somewhat upright stack and reachvs category | Somewhat upright stack and reachvs category | Average stack and reachvs category | Average stack and reachvs category |
Geometry
XS | XS | S | S | M | M | ML | ML | L | L | XL | XL | |
Stack | — | — | 539mm | 539mm | 559mm | 559mm | 574mm | 574mm | 595mm | 595mm | 614mm | 614mm |
Reach | — | — | 371mm | 371mm | 375mm | 375mm | 380mm | 380mm | 383mm | 383mm | 392mm | 392mm |
Stack to Reach Ratio | — | — | 1.45:1 | 1.45:1 | 1.49:1 | 1.49:1 | 1.51:1 | 1.51:1 | 1.55:1 | 1.55:1 | 1.57:1 | 1.57:1 |
Seat Tube Length, Unknown | — | — | 430mm | 430mm | 465mm | 465mm | 500mm | 500mm | 535mm | 535mm | 555mm | 555mm |
Top Tube Length, Effective/Horizontal Unknown | — | — | 515mm | 515mm | 535mm | 535mm | 550mm | 550mm | 565mm | 565mm | 580mm | 580mm |
Top Tube Slope | — | — | 14.4deg | 14.4deg | 12.6deg | 12.6deg | 10.3deg | 10.3deg | 8.8deg | 8.8deg | 8.5deg | 8.5deg |
Head Tube Angle | — | — | 71.5deg | 71.5deg | 71.8deg | 71.8deg | 72deg | 72deg | 72.5deg | 72.5deg | 72.5deg | 72.5deg |
Seat Tube Angle | — | — | 75deg | 75deg | 74deg | 74deg | 73.5deg | 73.5deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | — | — | 115mm | 115mm | 135mm | 135mm | 150mm | 150mm | 170mm | 170mm | 190mm | 190mm |
Bottom Bracket Drop | — | — | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm | 80mm |
Bottom Bracket Height | — | — | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm | 263mm |
Chainstay Length | — | — | 422mm | 422mm | 422mm | 422mm | 422mm | 422mm | 422mm | 422mm | 422mm | 422mm |
Chainstay Length Horizontal | — | — | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm | 414.4mm |
Front-Center | — | — | 585.2mm | 585.2mm | 594.1mm | 594.1mm | 602mm | 602mm | 606mm | 606mm | 621.8mm | 621.8mm |
Front-Center Horizontal | — | — | 579.7mm | 579.7mm | 588.7mm | 588.7mm | 596.7mm | 596.7mm | 600.7mm | 600.7mm | 616.7mm | 616.7mm |
Wheelbase | — | — | 994mm | 994mm | 1003mm | 1003mm | 1011mm | 1011mm | 1015mm | 1015mm | 1031mm | 1031mm |
Fork Offset/Rake | — | — | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm | 53mm |
Trail | — — | — — | 58.9mm mid/​neutral | 58.9mm mid/​neutral | 57mm mid/​neutral | 57mm mid/​neutral | 55.7mm mid/​neutral | 55.7mm mid/​neutral | 52.6mm mid/​neutral | 52.6mm mid/​neutral | 52.6mm mid/​neutral | 52.6mm mid/​neutral |
Mechanical Trail | — | — | 55.8mm | 55.8mm | 54.1mm | 54.1mm | 53mm | 53mm | 50.1mm | 50.1mm | 50.1mm | 50.1mm |
Wheel Flop | — | — | 17.7mm | 17.7mm | 16.9mm | 16.9mm | 16.4mm | 16.4mm | 15.1mm | 15.1mm | 15.1mm | 15.1mm |
Standover Height | — | — | 727mm | 727mm | 759mm | 759mm | 783mm | 783mm | 810mm | 810mm | 829mm | 829mm |
Tire to Pedal Spindle | — 170 mm cranks | — 170 mm cranks | 72.2mm 170 mm cranks | 72.2mm 170 mm cranks | 81.1mm 170 mm cranks | 81.1mm 170 mm cranks | 86.5mm 172.5 mm cranks | 86.5mm 172.5 mm cranks | 90.5mm 172.5 mm cranks | 90.5mm 172.5 mm cranks | 103.8mm 175 mm cranks | 103.8mm 175 mm cranks |
Pedal Spindle to Ground Clearance | — 170 mm cranks | — 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 93mm 170 mm cranks | 90.5mm 172.5 mm cranks | 90.5mm 172.5 mm cranks | 90.5mm 172.5 mm cranks | 90.5mm 172.5 mm cranks | 88mm 175 mm cranks | 88mm 175 mm cranks |
AR 1 Build
XS | XS | S | S | M | M | ML | ML | L | L | XL | 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 | 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 | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm | 32mm |
Tire Outer Diameter | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm | 686mm |
Bike Length with Tires | — | — | 1680mm | 1680mm | 1689mm | 1689mm | 1697mm | 1697mm | 1701mm | 1701mm | 1717mm | 1717mm |
Crank Length | — | — | 170mm | 170mm | 170mm | 170mm | 172.5mm | 172.5mm | 172.5mm | 172.5mm | 175mm | 175mm |
Stem Length | — | — | 80mm | 80mm | 90mm | 90mm | 100mm | 100mm | 100mm | 100mm | 110mm | 110mm |
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
Endurance RoadSource:https://www.giant-bicycles.com/au/contend-ar-1-2025, Giant