2020 Gunnar Cycles USA Rock Hound Base 17.5 (27.5")
Build
650B/27.5 in × 2.2 in
Insights
Somewhat aggressive stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Gunnar Cycles USA Rock Hound
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 582mm |
| Reach | 419mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 408mm |
| Top Tube Length, Effective/Horizontal Center | 600mm |
| Top Tube Length, Actual C-C | 577.8mm |
| Top Tube Slope | 21.8deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 105mm |
| Bottom Bracket Drop | 55mm |
| Bottom Bracket Height | 292.9mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 446.6mm |
| Front-Center | 667mm |
| Front-Center Horizontal | 665.4mm |
| Wheelbase | 1112mm |
| Fork Offset/Rake | 51mm |
| Fork Length (Axle-To-Crown) | 466mm |
| Trail | 72.3mm high |
| Mechanical Trail | 68mm |
| Wheel Flop | 23.3mm |
| Standover Height | 759mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 149.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 122.9mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.2in |
| Tire Outer Diameter | 695.8mm |
| Bike Length with Tires | 1807.8mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | Unknown |
| Suspension Sag | Unknown |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:http://gunnarbikes.com/site/bikes/rock-hound/