2015 Specialized Bicycles Amira Base 51
Build
700C/29 in × 25 mm
Insights
Average stack and reach vs trend of performance road bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 528mm |
| Reach | 378mm |
| Stack to Reach Ratio | 1.4:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Length, Effective/Horizontal Center | 518mm |
| Top Tube Slope | 3.9deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 75.5deg |
| Head Tube Length | 125mm |
| Bottom Bracket Drop | 73mm |
| Bottom Bracket Height | 263mm |
| Chainstay Length | 405mm |
| Chainstay Length Horizontal | 398.4mm |
| Front-Center | 582mm |
| Front-Center Horizontal | 577.6mm |
| Wheelbase | 976mm |
| Fork Offset/Rake | 49mm |
| Trail | 57.7mm mid/neutral |
| Mechanical Trail | 54.8mm |
| Wheel Flop | 16.9mm |
| Standover Height | 735mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 76mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 93mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 25mm |
| Tire Outer Diameter | 672mm |
| Bike Length with Tires | 1648mm |
| Crank Length | 170mm |
| Handlebar Width | 400mm |
| Stem Length | 90mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
| Features | Women's |
Source:https://www.specialized.com/us/en/amira-sl4-comp/p/65598?color=174547-65598