2021 18 Bikes No 9 Base 475
Build
700C/29 in × 2.3 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail trail mtb bikes
Design deviates from other sizes of 18 Bikes No 9
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 615mm |
| Reach | 475mm |
| Stack to Reach Ratio | 1.29:1 |
| Seat Tube Length, Unknown | 380mm |
| Top Tube Length, Unknown | 651mm |
| Top Tube Slope | 23.3deg |
| Head Tube Angle | 66.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 309.4mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 430.8mm |
| Front-Center | 774mm |
| Front-Center Horizontal | 772.2mm |
| Wheelbase | 1203mm |
| Fork Offset/Rake | 51.2mm |
| Fork Length (Axle-To-Crown) | 541mm |
| Trail | 104.8mm very high |
| Mechanical Trail | 96.1mm |
| Wheel Flop | 38.3mm |
| Standover Height | 760mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 234.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 139.4mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 738.8mm |
| Bike Length with Tires | 1941.8mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 130mm |
| Suspension Sag | Unknown |
| Frame Material | Steel |
| Fork Material | N/A |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 159 cm to 177 cm |
Source:https://www.18bikes.co.uk/18-bikes-number-9-frameset.html