2021 18 Bikes No 7 Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 140mm fork travel
- Features
- Disc brake
Geometry
450 | 475 | 500 | 525 | |
Stack | 568mm | 568mm | 577mm | 577mm |
Reach | 450mm | 475mm | 500mm | 525mm |
Stack to Reach Ratio | 1.26:1 | 1.2:1 | 1.15:1 | 1.1:1 |
Seat Tube Length, Unknown | 380mm | 380mm | 430mm | 430mm |
Top Tube Length, Unknown | 613mm | 638mm | 665mm | 690mm |
Top Tube Slope | 20.1deg | 19.3deg | 14.8deg | 14.3deg |
Head Tube Angle | 65.5deg | 65.5deg | 65.5deg | 65.5deg |
Seat Tube Angle | 74deg | 74deg | 74deg | 74deg |
Head Tube Length | 100mm | 100mm | 110mm | 110mm |
Bottom Bracket Drop | 35mm | 35mm | 35mm | 35mm |
Bottom Bracket Height | 315.4mm | 315.4mm | 315.4mm | 315.4mm |
Chainstay Length | 420mm | 435mm | 445mm | 460mm |
Chainstay Length Horizontal | 418.5mm | 433.6mm | 443.6mm | 458.7mm |
Front-Center | 744mm | 769mm | 798mm | 823mm |
Front-Center Horizontal | 743.5mm | 768.4mm | 797.4mm | 822.3mm |
Wheelbase | 1162mm | 1202mm | 1241mm | 1281mm |
Fork Offset/Rake | 46mm | 46mm | 45.8mm | 45.8mm |
Fork Length (Axle-To-Crown) | 532mm | 532mm | 532mm | 532mm |
Trail | 109.1mm very high | 109.2mm very high | 109.3mm very high | 109.4mm very high |
Mechanical Trail | 99.3mm | 99.4mm | 99.5mm | 99.5mm |
Wheel Flop | 41.2mm | 41.2mm | 41.3mm | 41.3mm |
Standover Height | 729mm | 728mm | 734mm | 733mm |
Tire to Pedal Spindle | 223.6mm 170 mm cranks | 248.6mm 170 mm cranks | 277.6mm 170 mm cranks | 302.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 145.4mm 170 mm cranks | 145.4mm 170 mm cranks | 145.4mm 170 mm cranks | 145.4mm 170 mm cranks |
Base Build
450 | 475 | 500 | 525 | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Width Max | 2.4in | 2.4in | 2.4in | 2.4in |
Tire Outer Diameter | 700.8mm | 700.8mm | 700.8mm | 700.8mm |
Bike Length with Tires | 1862.8mm | 1902.8mm | 1941.8mm | 1981.8mm |
Published Sizing Recommendations
Height | 154 cm to 164 cm | 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-7-frameset-78399992.html