2017 Specialized Bicycles Rockhopper Expert S
Build
700C/29 in × 2.1 in
Insights
Somewhat upright stack and reach vs trend of hardtail cross-country mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 615mm |
| Reach | 400mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-TTT | 395mm |
| Top Tube Length, Effective/Horizontal Center | 588mm |
| Top Tube Slope | 22.7deg |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 64mm |
| Bottom Bracket Height | 300.3mm |
| Chainstay Length | 442mm |
| Chainstay Length Horizontal | 437.3mm |
| Front-Center | 642mm |
| Front-Center Horizontal | 638.7mm |
| Wheelbase | 1076mm |
| Fork Offset/Rake | 46mm |
| Fork Length, Unknown | 485mm |
| Trail | 76.8mm high |
| Mechanical Trail | 72.6mm |
| Wheel Flop | 23.6mm |
| Standover Height | 763.6mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 107.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 130.3mm |
Expert Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.1in |
| Tire Outer Diameter | 728.7mm |
| Bike Length with Tires | 1804.7mm |
| Crank Length | 170mm |
| Handlebar Width | 720mm |
| Stem Length | 60mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://www.specialized.com/au/en/rockhopper-expert-29/p/115148?color=208568-115148