2020 Gunnar Cycles USA Rock Tour II Base 20.5
Build
650B/27.5 in × 2.3 in
Insights
Average stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Gunnar Cycles USA Rock Tour II
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 623mm |
| Reach | 389mm |
| Stack to Reach Ratio | 1.6:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Unknown | 580mm |
| Top Tube Slope | 11.9deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 181mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 285.4mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 445.3mm |
| Front-Center | 643mm |
| Front-Center Horizontal | 639.7mm |
| Wheelbase | 1085mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 415mm |
| Trail | 71.1mm high |
| Mechanical Trail | 67mm |
| Wheel Flop | 22.4mm |
| Standover Height | 811mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 122.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 115.4mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 700.8mm |
| Bike Length with Tires | 1785.8mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:http://gunnarbikes.com/site/rocktourii/