2021 18 Bikes No 9 Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 130mm fork travel
- Features
- Disc brake
Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat aggressive stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
475 | 500 | 525 | |
Stack | 615mm | 615mm | 625mm |
Reach | 475mm | 500mm | 525mm |
Stack to Reach Ratio | 1.29:1 | 1.23:1 | 1.19:1 |
Seat Tube Length, Unknown | 380mm | 430mm | 430mm |
Top Tube Length, Unknown | 651mm | 679mm | 704mm |
Top Tube Slope | 23.3deg | 18.1deg | 18.2deg |
Head Tube Angle | 66.5deg | 66.5deg | 66.5deg |
Seat Tube Angle | 74deg | 74deg | 74deg |
Head Tube Length | 110mm | 110mm | 110mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm |
Bottom Bracket Height | 309.4mm | 309.4mm | 309.4mm |
Chainstay Length | 435mm | 447mm | 465mm |
Chainstay Length Horizontal | 430.8mm | 443mm | 461.1mm |
Front-Center | 774mm | 799mm | 828mm |
Front-Center Horizontal | 772.2mm | 797.1mm | 825.9mm |
Wheelbase | 1203mm | 1240mm | 1287mm |
Fork Offset/Rake | 51.2mm | 51.1mm | 50.6mm |
Fork Length (Axle-To-Crown) | 541mm | 541mm | 541mm |
Trail | 104.8mm very high | 104.9mm very high | 105.4mm very high |
Mechanical Trail | 96.1mm | 96.2mm | 96.7mm |
Wheel Flop | 38.3mm | 38.4mm | 38.6mm |
Standover Height | 760mm | 756mm | 766mm |
Tire to Pedal Spindle | 234.6mm 170 mm cranks | 259.6mm 170 mm cranks | 288.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 139.4mm 170 mm cranks | 139.4mm 170 mm cranks | 139.4mm 170 mm cranks |
Base Build
475 | 500 | 525 | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.3in | 2.3in | 2.3in |
Tire Width Max | 2.4in | 2.4in | 2.4in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1941.8mm | 1978.8mm | 2025.8mm |
Published Sizing Recommendations
Height | 159 cm to 177 cm | 169 cm to 189 cm | 182 cm to 205 cm |
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 Trail MTBSource:https://www.18bikes.co.uk/18-bikes-number-9-frameset.html