2018 Niner Bikes ROS 9 Plus Rigid 100mm fork
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 100mm fork travel
- Features
- Disc brake
Somewhat upright 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 | Somewhat upright 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
SM | MD | LG | XL | |
Stack | 605mm | 614mm | 628mm | 628mm |
Reach | 394mm | 408mm | 423mm | 442mm |
Stack to Reach Ratio | 1.54:1 | 1.5:1 | 1.48:1 | 1.42:1 |
Seat Tube Length, C-T | 378mm | 411mm | 467mm | 530mm |
Top Tube Length, Effective/Horizontal HT Top | 582mm | 599mm | 618mm | 637mm |
Top Tube Slope | 25.8deg | 22.7deg | 18deg | 11.5deg |
Head Tube Angle | 68deg | 68deg | 68deg | 68deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 100mm | 110mm | 125mm | 125mm |
Bottom Bracket Drop | 63mm | 63mm | 63mm | 63mm |
Bottom Bracket Height | 324.2mm | 324.2mm | 324.2mm | 324.2mm |
Chainstay Length | 453mm | 453mm | 453mm | 453mm |
Chainstay Length Max | 453mm | 453mm | 453mm | 453mm |
Chainstay Length Horizontal | 448.6mm | 448.6mm | 448.6mm | 448.6mm |
Chainstay Length Horizontal Max | 448.6mm | 448.6mm | 448.6mm | 448.6mm |
Front-Center | 655.4mm | 674.4mm | 694.3mm | 713.2mm |
Front-Center Horizontal | 652.4mm | 671.4mm | 691.4mm | 710.4mm |
Wheelbase | 1101mm | 1120mm | 1140mm | 1159mm |
Wheelbase Max | 1101mm | 1120mm | 1140mm | 1159mm |
Fork Offset/Rake | 36.6mm | 37.8mm | 37.2mm | 37.2mm |
Trail | 117mm very high | 115.7mm very high | 116.3mm very high | 116.3mm very high |
Mechanical Trail | 108.5mm | 107.2mm | 107.8mm | 107.8mm |
Wheel Flop | 40.6mm | 40.2mm | 40.4mm | 40.4mm |
Standover Height | 688mm | 715mm | 760mm | 809mm |
Tire to Pedal Spindle | 98.2mm 170 mm cranks | 117.2mm 170 mm cranks | 137.1mm 170 mm cranks | 156mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 154.2mm 170 mm cranks | 154.2mm 170 mm cranks | 154.2mm 170 mm cranks | 154.2mm 170 mm cranks |
100mm fork Build
SM | MD | 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 |
Tire Width | 3in | 3in | 3in | 3in |
Tire Width Max | 3in | 3in | 3in | 3in |
Tire Outer Diameter | 774.4mm | 774.4mm | 774.4mm | 774.4mm |
Bike Length with Tires | 1875.4mm | 1894.4mm | 1914.4mm | 1933.4mm |
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/pages/bikes-archive