2019 Niner Bikes AIR 9 RDO 5-Star Shimano XTR LTD - 29
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Carbon/Composite
- Suspension
- 100mm fork travel
- Features
- Disc brake, Single-speed capable
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
XS | SM | MD | LG | LG | XL | |
Stack | 602mm | 607mm | 617mm | 626mm | 626mm | 635mm |
Reach | 393mm | 406mm | 424mm | 441mm | 441mm | 458mm |
Stack to Reach Ratio | 1.53:1 | 1.5:1 | 1.46:1 | 1.42:1 | 1.42:1 | 1.39:1 |
Seat Tube Length, C-T | 356mm | 394mm | 419mm | 483mm | 483mm | 533mm |
Top Tube Length, Effective/Horizontal HT Top | 575mm | 590mm | 610mm | 630mm | 630mm | 650mm |
Top Tube Slope | 27.8deg | 23.8deg | 21.6deg | 15.7deg | 15.7deg | 11.5deg |
Head Tube Angle | 70deg | 70deg | 70deg | 70deg | 70deg | 70deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 95mm | 100mm | 110mm | 120mm | 120mm | 130mm |
Bottom Bracket Drop | 58mm | 58mm | 58mm | 58mm | 58mm | 58mm |
Bottom Bracket Height | 310.2mm | 310.2mm | 310.2mm | 310.2mm | 310.2mm | 310.2mm |
Chainstay Length | 435mm | 435mm | 435mm | 435mm | 435mm | 435mm |
Chainstay Length Horizontal | 431.1mm | 431.1mm | 431.1mm | 431.1mm | 431.1mm | 431.1mm |
Front-Center | 646mm | 661mm | 682mm | 702mm | 702mm | 722mm |
Front-Center Horizontal | 642.9mm | 658.9mm | 678.9mm | 699.9mm | 699.9mm | 719.9mm |
Wheelbase | 1074mm | 1090mm | 1110mm | 1131mm | 1131mm | 1151mm |
Fork Offset/Rake | 51mm | 51mm | 51mm | 51mm | 51mm | 51mm |
Trail | 79.7mm high | 79.7mm high | 79.7mm high | 79.7mm high | 79.7mm high | 79.7mm high |
Mechanical Trail | 74.9mm | 74.9mm | 74.9mm | 74.9mm | 74.9mm | 74.9mm |
Wheel Flop | 25.6mm | 25.6mm | 25.6mm | 25.6mm | 25.6mm | 25.6mm |
Standover Height | 688mm | 724mm | 744mm | 796mm | 796mm | 837mm |
Tire to Pedal Spindle | 107.9mm 170 mm cranks | 122.9mm 170 mm cranks | 143.9mm 170 mm cranks | 163.9mm 170 mm cranks | 163.9mm 170 mm cranks | 183.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 140.2mm 170 mm cranks | 140.2mm 170 mm cranks | 140.2mm 170 mm cranks | 140.2mm 170 mm cranks | 140.2mm 170 mm cranks | 140.2mm 170 mm cranks |
5-Star Shimano XTR LTD - 29 Build
XS | SM | MD | LG | LG | 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 | 2.25in | 2.25in | 2.25in | 2.25in | 2.25in | 2.25in |
Tire Width Max | 2.4in | 2.4in | 2.4in | 2.4in | 2.4in | 2.4in |
Tire Outer Diameter | 736.3mm | 736.3mm | 736.3mm | 736.3mm | 736.3mm | 736.3mm |
Bike Length with Tires | 1810.3mm | 1826.3mm | 1846.3mm | 1867.3mm | 1867.3mm | 1887.3mm |
Handlebar Width | 780mm | 780mm | 780mm | 780mm | 780mm | 780mm |
Published Sizing Recommendations
Height | 5 ft 0 in to 5 ft 5 in | 5 ft 3 in to 5 ft 9 in | 5 ft 8 in to 6 ft 0 in | 5 ft 11 in to 6 ft 3 in | 5 ft 11 in to 6 ft 3 in | 6 ft 3 in to 6 ft 7 in |
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
Hardtail Cross-country MTBSource:https://ninerbikes.com/products/air-9-rdo, https://www.theproscloset.com/products/2020-niner-air-9-rdo-l-2