2020 Specialized Bicycles Rockhopper Expert
- Design
- Flat Bar, Full suspension
- Frame
- Carbon/Composite
- Suspension
- 170mm fork travel
- Features
- Disc brake
Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Somewhat upright 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
S2 | S3 | S4 | S5 | |
Stack | 626.6mm | 631.1mm | 640.1mm | 649.1mm |
Reach | 433mm | 459.9mm | 483.5mm | 507.2mm |
Stack to Reach Ratio | 1.45:1 | 1.37:1 | 1.32:1 | 1.28:1 |
Seat Tube Length, C-T | 400mm | 420mm | 440mm | 465mm |
Top Tube Length, Effective/Horizontal HT Top | 591mm | 619mm | 644mm | 670mm |
Head Tube Angle | 64.3deg | 64.3deg | 64.3deg | 64.3deg |
Seat Tube Angle | 76deg | 76deg | 76deg | 76deg |
Head Tube Length | 95mm | 100mm | 110mm | 120mm |
Bottom Bracket Drop | 21mm | 21mm | 21mm | 21mm |
Bottom Bracket Height | 348.4mm | 348.4mm | 348.4mm | 348.4mm |
Chainstay Length | 442mm | 442mm | 442mm | 442mm |
Chainstay Length Horizontal | 441.5mm | 441.5mm | 441.5mm | 441.5mm |
Front-Center | 775.8mm | 804.8mm | 832.8mm | 860.8mm |
Front-Center Horizontal | 775.5mm | 804.5mm | 832.5mm | 860.5mm |
Wheelbase | 1217mm | 1246mm | 1274mm | 1302mm |
Fork Offset/Rake | 46mm | 46mm | 46mm | 46mm |
Fork Length (Axle-To-Crown) | 581mm | 581mm | 581mm | 581mm |
Trail | 126.7mm very high | 126.7mm very high | 126.7mm very high | 126.7mm very high |
Mechanical Trail | 114.2mm | 114.2mm | 114.2mm | 114.2mm |
Wheel Flop | 49.5mm | 49.5mm | 49.5mm | 49.5mm |
Tire to Pedal Spindle | 236.4mm 170 mm cranks | 265.4mm 170 mm cranks | 293.3mm 170 mm cranks | 321.3mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 178.4mm 170 mm cranks | 178.4mm 170 mm cranks | 178.4mm 170 mm cranks | 178.4mm 170 mm cranks |
Expert Build
S2 | S3 | S4 | S5 | |
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 | 2.3in | 2.3in | 2.3in | 2.3in |
Tire Outer Diameter | 738.8mm | 738.8mm | 738.8mm | 738.8mm |
Bike Length with Tires | 1955.8mm | 1984.8mm | 2012.8mm | 2040.8mm |
Crank Length | 170mm | 170mm | 170mm | 170mm |
Handlebar Width | 800mm | 800mm | 800mm | 800mm |
Stem Length | 40mm | 40mm | 40mm | 40mm |
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
Full-suspension All-mountain/Enduro MTBSource:https://www.specialized.com/us/en/enduro-expert/p/171285?color=264067-171285