2006 Specialized Bicycles Rockhopper Base

Design
Flat Bar, Hardtail (Front suspension)
Frame
Aluminum
Suspension
100mm fork travel
Features
Disc brake
Somewhat upright 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
587mm
Reach
352mm
Stack to Reach Ratio
1.67:1
Seat Tube Length, C-T
432mm
330mm
381mm
483mm
533mm
585mm
Seat Tube Length, C-C
350mm
248mm
299mm
401mm
452mm
503mm
Top Tube Length, Effective/Horizontal HT Top
590mm
545mm
565mm
615mm
640mm
660mm
Top Tube Length, Actual C-C
568mm
546mm
551mm
590mm
515mm
638mm
Top Tube Slope
20deg
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
632mm
600mm
611mm
653mm
679mm
705mm
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
124.1mm
170 mm cranks
92.1mm
170 mm cranks
103.1mm
170 mm cranks
145.1mm
170 mm cranks
171.1mm
170 mm cranks
197.1mm
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 Scale
Source:https://www.specialized.com/gb/en/rockhopper-disc/p/20711?size=One+Size&color=22175-20711