Bike-on-Bike
Insights
Average stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Geometry
Stack | 611mm | — |
Reach | 410mm | — |
Stack to Reach Ratio | 1.49:1 | — |
Seat Tube Length, C-T | 396mm | — |
Top Tube Length, Effective/Horizontal HT Top | 595mm | — |
Top Tube Slope | 23.9deg | — |
Head Tube Angle | 68deg | — |
Seat Tube Angle | 74deg | — |
Head Tube Length | 100mm | — |
Bottom Bracket Drop | 52mm | — |
Bottom Bracket Height | 311.1mm | — |
Chainstay Length | 430mm | — |
Chainstay Length Horizontal | 426.8mm | — |
Front-Center | 693mm | — |
Front-Center Horizontal | 691.2mm | — |
Wheelbase | 1118mm | — |
Fork Offset/Rake | 51.3mm | — |
Trail | 91.4mm very high | — — |
Mechanical Trail | 84.8mm | — |
Wheel Flop | 31.8mm | — |
Standover Height | 721mm | — |
Tire to Pedal Spindle | 159.9mm 170 mm cranks | — |
Pedal Spindle to Ground Clearance | 141.1mm 170 mm cranks | — |
Build
Wheel Size | 650B/27.5 in 584 mm BSD | — — |
Tire Width | 2.8in | — |
Tire Outer Diameter | 726.2mm | — |
Bike Length with Tires | 1844.2mm | — |
Stem Length | 40mm | — |
| Suspension Type | Hardtail (Front suspension) | — |
| Bar Type | Flat Bar | — |
| Fork Travel | 120mm | — |
| Rear Travel | Unknown | — |
| Suspension Sag | Unknown | — |
| Frame Material | Steel | — |
| Fork Material | Unknown | — |
| Brake Type | Disc | — |
| Features | Single-speed capable | — |
Meta
| Actions | — | |
| Source | https://ninerbikes.com/products/sir-9?variant=18665213427810 | — |
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