2020/OCR Classic Giant Bicycles OCR Alliance
- Category
- Performance Road
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Aluminum
- Fork
- Carbon/Composite
- Features
- Rim brake
Geometry
XS | S | M | |
Stack | 512.7mm | 525.6mm | 545.9mm |
Reach | 373mm | 379.3mm | 388.1mm |
Stack to Reach Ratio | 1.37:1 | 1.39:1 | 1.41:1 |
Head Tube Angle | 70.5deg | 71deg | 72deg |
Seat Tube Angle | 74deg | 73.5deg | 73deg |
Head Tube Length | 112mm | 127mm | 145mm |
Bottom Bracket Drop | 75mm | 72mm | 70mm |
Bottom Bracket Height | 261mm | 264mm | 266mm |
Chainstay Length | 420mm | 425mm | 425mm |
Chainstay Length Horizontal | 413.3mm | 418.9mm | 419.2mm |
Front-Center | 585.9mm | 592.7mm | 594.1mm |
Front-Center Horizontal | 581.1mm | 588.3mm | 590mm |
Wheelbase | 994.3mm | 1007.2mm | 1009.2mm |
Fork Offset/Rake | 50mm | 50mm | 45mm |
Trail | 65.9mm high | 62.8mm mid/neutral | 61.9mm mid/neutral |
Mechanical Trail | 62.2mm | 59.4mm | 58.8mm |
Wheel Flop | 20.8mm | 19.3mm | 18.2mm |
Tire to Pedal Spindle | 84.9mm 165 mm cranks | 86.7mm 170 mm cranks | 85.6mm 172.5 mm cranks |
Pedal Spindle to Ground Clearance | 96mm 165 mm cranks | 94mm 170 mm cranks | 93.5mm 172.5 mm cranks |
Alliance Build
XS | S | M | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 25mm | 25mm | 25mm |
Tire Outer Diameter | 672mm | 672mm | 672mm |
Bike Length with Tires | 1666.3mm | 1679.2mm | 1681.2mm |
Crank Length | 165mm | 170mm | 172.5mm |
Handlebar Width | 400mm | 400mm | 420mm |
Published Sizing Recommendations
Height | 158 cm to 172 cm | 170 cm to 177 cm | 175 cm to 181 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
Performance RoadSource:http://www.giantgd.com/bikes/showproduct.php?id=1501