2019 Niner Bikes AIR 9 2-Star NX Eagle - 29 SM
Build
700C/29 in × 2.4 in
Insights
Average stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 610mm |
| Reach | 410mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 394mm |
| Top Tube Length, Effective/Horizontal HT Top | 585mm |
| Top Tube Slope | 24deg |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 52mm |
| Bottom Bracket Height | 320mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 426.8mm |
| Front-Center | 693mm |
| Front-Center Horizontal | 690.2mm |
| Wheelbase | 1117mm |
| Fork Offset/Rake | 50.7mm |
| Trail | 95.6mm very high |
| Mechanical Trail | 88.6mm |
| Wheel Flop | 33.2mm |
| Standover Height | 729mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 151mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 150mm |
2-Star NX Eagle - 29 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.4in |
| Tire Outer Diameter | 743.9mm |
| Bike Length with Tires | 1860.9mm |
| Handlebar Width | 780mm |
| Stem Length | 40mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
| Features | Single-speed capable |
Published Sizing Recommendations
| Height | 5 ft 3 in to 5 ft 9 in |
Source:https://ninerbikes.com/products/air-9