2024 First Shelby Base
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
Very 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 | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
15.5 | 17.5 | 19 | 21 | |
Stack | 559mm | 578mm | 598mm | 619mm |
Reach | 389mm | 407mm | 430mm | 443mm |
Stack to Reach Ratio | 1.44:1 | 1.42:1 | 1.39:1 | 1.4:1 |
Seat Tube Length, C-T | 394mm | 445mm | 483mm | 533mm |
Top Tube Length, Effective/Horizontal HT Top | 584mm | 602mm | 625mm | 648mm |
Top Tube Slope | 19.9deg | 15.9deg | 13.4deg | 10.4deg |
Head Tube Angle | 68deg | 68deg | 68deg | 68deg |
Seat Tube Angle | 72.4deg | 72.4deg | 72.4deg | 72.4deg |
Head Tube Length | 110mm | 115mm | 115mm | 130mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 253.2mm | 253.2mm | 253.2mm | 253.2mm |
Chainstay Length | 440mm | 440mm | 440mm | 440mm |
Chainstay Length Horizontal | 435.9mm | 435.9mm | 435.9mm | 435.9mm |
Front-Center | 665.8mm | 691.7mm | 714.6mm | 744.5mm |
Front-Center Horizontal | 663.1mm | 689.1mm | 712.1mm | 742.1mm |
Wheelbase | 1099mm | 1125mm | 1148mm | 1178mm |
Fork Offset/Rake | 67.2mm | 67.5mm | 60mm | 67.9mm |
Fork Length (On-Axis) | 508mm | 508mm | 508mm | 508mm |
Trail | 54mm mid/neutral | 53.7mm mid/neutral | 61.8mm mid/neutral | 53.3mm mid/neutral |
Mechanical Trail | 50.1mm | 49.8mm | 57.3mm | 49.4mm |
Wheel Flop | 18.8mm | 18.7mm | 21.5mm | 18.5mm |
Tire to Pedal Spindle | 182.6mm 170 mm cranks | 208.5mm 170 mm cranks | 231.4mm 170 mm cranks | 261.3mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 83.2mm 170 mm cranks | 83.2mm 170 mm cranks | 83.2mm 170 mm cranks | 83.2mm 170 mm cranks |
Base Build
15.5 | 17.5 | 19 | 21 | |
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 |
Tire Width | 2.2mm | 2.2mm | 2.2mm | 2.2mm |
Tire Width Max | 2.2mm | 2.2mm | 2.2mm | 2.2mm |
Tire Outer Diameter | 626.4mm | 626.4mm | 626.4mm | 626.4mm |
Bike Length with Tires | 1725.4mm | 1751.4mm | 1774.4mm | 1804.4mm |
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://firstbikes.com.br/quadro-shelby