2024 Curtis AM9 Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Steel
- Suspension
- 140mm fork travel
Average 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 aggressive 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 | Average 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
XS | S | M | L | XL | XXL | |
Stack | 616mm | 625mm | 625mm | 635mm | 643mm | 643mm |
Reach | 440mm | 455mm | 475mm | 485mm | 505mm | 505mm |
Stack to Reach Ratio | 1.4:1 | 1.37:1 | 1.32:1 | 1.31:1 | 1.27:1 | 1.27:1 |
Seat Tube Length, Unknown | 406.4mm | 406.4mm | 406.4mm | 431.8mm | 431.8mm | 508mm |
Top Tube Slope | 22.3deg | 22.5deg | 21.8deg | 20.1deg | 20.1deg | 13.5deg |
Head Tube Angle | 64.5deg | 64.5deg | 64.5deg | 64.5deg | 64.5deg | 64.5deg |
Seat Tube Angle | 75deg | 75deg | 75deg | 75deg | 75deg | 75deg |
Head Tube Length | 100mm | 110mm | 110mm | 120mm | 130mm | 130mm |
Bottom Bracket Drop | 62mm | 62mm | 62mm | 62mm | 62mm | 62mm |
Bottom Bracket Height | 315mm | 315mm | 315mm | 315mm | 315mm | 315mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Horizontal | 435.6mm | 435.6mm | 435.6mm | 435.6mm | 435.6mm | 435.6mm |
Trail | — — | — — | — — | — — | — — | — — |
Mechanical Trail | — | — | — | — | — | — |
Wheel Flop | — | — | — | — | — | — |
Pedal Spindle to Ground Clearance | 145mm 170 mm cranks | 145mm 170 mm cranks | 145mm 170 mm cranks | 145mm 170 mm cranks | 145mm 170 mm cranks | 145mm 170 mm cranks |
Base Build
XS | S | M | L | XL | XXL | |
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 | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 2.6in | 2.6in | 2.6in | 2.6in | 2.6in | 2.6in |
Tire Outer Diameter | 754.1mm | 754.1mm | 754.1mm | 754.1mm | 754.1mm | 754.1mm |
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.curtisbikes.co.uk/frames/enduro/curtis-am9/