2017 Specialized Bicycles Rockhopper Expert
- Category
- Hardtail Cross-country MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Fork
- Aluminum
- Suspension
- 100mm 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 | 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 |
Geometry
S | M | L | XL | XXL | |
Stack | 615mm | 624mm | 639mm | 653mm | 672mm |
Reach | 400mm | 412mm | 430mm | 450mm | 464mm |
Stack to Reach Ratio | 1.54:1 | 1.51:1 | 1.49:1 | 1.45:1 | 1.45:1 |
Seat Tube Length, C-TTT | 395mm | 445mm | 460mm | 510mm | 560mm |
Top Tube Length, Effective/Horizontal Center | 588mm | 615mm | 637mm | 662mm | 682mm |
Top Tube Slope | 22.7deg | 18.1deg | 17.5deg | 13.6deg | 10.6deg |
Head Tube Angle | 71deg | 71deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 73deg | 72deg | 72deg | 72deg | 72deg |
Head Tube Length | 110mm | 100mm | 115mm | 130mm | 150mm |
Bottom Bracket Drop | 64mm | 64mm | 64mm | 64mm | 64mm |
Bottom Bracket Height | 300.3mm | 300.3mm | 300.3mm | 300.3mm | 300.3mm |
Chainstay Length | 442mm | 442mm | 442mm | 442mm | 442mm |
Chainstay Length Horizontal | 437.3mm | 437.3mm | 437.3mm | 437.3mm | 437.3mm |
Front-Center | 642mm | 657mm | 680mm | 704mm | 725mm |
Front-Center Horizontal | 638.7mm | 653.7mm | 676.7mm | 701.7mm | 721.7mm |
Wheelbase | 1076mm | 1091mm | 1114mm | 1139mm | 1159mm |
Fork Offset/Rake | 46mm | 46mm | 46mm | 46mm | 46mm |
Fork Length, Unknown | 485mm | 505mm | 505mm | 505mm | 505mm |
Trail | 76.8mm high | 76.8mm high | 76.8mm high | 76.8mm high | 76.8mm high |
Mechanical Trail | 72.6mm | 72.6mm | 72.6mm | 72.6mm | 72.6mm |
Wheel Flop | 23.6mm | 23.6mm | 23.6mm | 23.6mm | 23.6mm |
Standover Height | 763.6mm | 810.4mm | 828.7mm | 860mm | 894.1mm |
Tire to Pedal Spindle | 107.7mm 170 mm cranks | 117.7mm 175 mm cranks | 140.7mm 175 mm cranks | 164.7mm 175 mm cranks | 185.7mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 130.3mm 170 mm cranks | 125.3mm 175 mm cranks | 125.3mm 175 mm cranks | 125.3mm 175 mm cranks | 125.3mm 175 mm cranks |
Expert Build
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 |
Tire Width | 2.1in | 2.1in | 2.1in | 2.1in | 2.1in |
Tire Outer Diameter | 728.7mm | 728.7mm | 728.7mm | 728.7mm | 728.7mm |
Bike Length with Tires | 1804.7mm | 1819.7mm | 1842.7mm | 1867.7mm | 1887.7mm |
Crank Length | 170mm | 175mm | 175mm | 175mm | 175mm |
Handlebar Width | 720mm | 720mm | 720mm | 720mm | 720mm |
Stem Length | 60mm | 70mm | 70mm | 80mm | 90mm |
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/au/en/rockhopper-expert-29/p/115148?color=208568-115148