2006 Specialized Bicycles Rockhopper Base
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 100mm fork travel
- Features
- Disc brake
Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Suspension sag unknown Geometry may mis-represent actual riding geometry | Suspension sag unknown Geometry may mis-represent actual riding geometry | Suspension sag unknown Geometry may mis-represent actual riding geometry | Suspension sag unknown Geometry may mis-represent actual riding geometry | Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
17 | 13 | 15 | 19 | 21 | 23 | |
Stack | 578mm | — | — | — | — | — |
Reach | 381mm | — | — | — | — | — |
Stack to Reach Ratio | 1.52:1 | — | — | — | — | — |
Seat Tube Length, C-T | 432mm | 330mm | 381mm | 483mm | 533mm | 585mm |
Top Tube Length, Effective/Horizontal Unknown | 590mm | 545mm | 565mm | 615mm | 640mm | 660mm |
Top Tube Length, Actual C-C | 568mm | 546mm | 551mm | 590mm | 515mm | 638mm |
Top Tube Slope | 18deg | — | — | — | — | — |
Head Tube Angle | 70deg | 70deg | 70deg | 70deg | 70deg | 70deg |
Seat Tube Angle | 73deg | 73deg | 73deg | 73deg | 73deg | 73deg |
Head Tube Length | 110mm | 100mm | 100mm | 120mm | 140mm | 160mm |
Bottom Bracket Drop | 36mm | 36mm | 36mm | 36mm | 36mm | 36mm |
Bottom Bracket Height | 301.9mm | 301.9mm | 301.9mm | 301.9mm | 301.9mm | 301.9mm |
Chainstay Length | 426mm | 426mm | 426mm | 426mm | 426mm | 426mm |
Chainstay Length Horizontal | 424.5mm | 424.5mm | 424.5mm | 424.5mm | 424.5mm | 424.5mm |
Front-Center | 632.6mm | 601.6mm | 610.6mm | 652.5mm | 678.5mm | 704.4mm |
Front-Center Horizontal | 631.5mm | 600.5mm | 609.5mm | 651.5mm | 677.5mm | 703.5mm |
Wheelbase | 1056mm | 1025mm | 1034mm | 1076mm | 1102mm | 1128mm |
Fork Offset/Rake | 38mm | 38mm | 38mm | 38mm | 38mm | 38mm |
Trail | 82.6mm very high | 82.6mm very high | 82.6mm very high | 82.6mm very high | 82.6mm very high | 82.6mm very high |
Mechanical Trail | 77.6mm | 77.6mm | 77.6mm | 77.6mm | 77.6mm | 77.6mm |
Wheel Flop | 26.5mm | 26.5mm | 26.5mm | 26.5mm | 26.5mm | 26.5mm |
Standover Height | 752mm | 688mm | 716mm | 784mm | 817mm | 865mm |
Tire to Pedal Spindle | 124.6mm 170 mm cranks | 93.7mm 170 mm cranks | 102.7mm 170 mm cranks | 144.6mm 170 mm cranks | 170.6mm 170 mm cranks | 196.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 131.9mm 170 mm cranks | 131.9mm 170 mm cranks | 131.9mm 170 mm cranks | 131.9mm 170 mm cranks | 131.9mm 170 mm cranks | 131.9mm 170 mm cranks |
Base Build
17 | 13 | 15 | 19 | 21 | 23 | |
Wheel Size | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD |
Tire Width | 2.3in | 2.3in | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Outer Diameter | 675.8mm | 675.8mm | 675.8mm | 675.8mm | 675.8mm | 675.8mm |
Bike Length with Tires | 1731.8mm | 1700.8mm | 1709.8mm | 1751.8mm | 1777.8mm | 1803.8mm |
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 Cross-country MTBSource:https://www.specialized.com/gb/en/rockhopper-disc/p/20711?size=One+Size&color=22175-20711