2025 Tunk Hike-Use Base 61
Build
700C/29 in × 42 mm
Insights
Design deviates from other sizes of Tunk Hike-Use
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 615mm |
| Reach | 396mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 637mm |
| Seat Tube Length, C-C | 603mm |
| Top Tube Length, Effective/Horizontal Center | 585mm |
| Top Tube Length, Actual C-C | 585mm |
| Top Tube Slope | 0deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 72.5deg |
| Head Tube Length | 174mm |
| Bottom Bracket Drop | 78mm |
| Bottom Bracket Height | 275mm |
| Chainstay Length | 460mm |
| Chainstay Length Horizontal | 453.3mm |
| Front-Center | 633mm |
| Front-Center Horizontal | 628.2mm |
| Wheelbase | 1081.5mm |
| Fork Offset/Rake | 65mm |
| Fork Length (Axle-To-Crown) | 395mm |
| Trail | 40mm low |
| Mechanical Trail | 38.2mm |
| Wheel Flop | 11.2mm |
| Standover Height | 860mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 110mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1787.5mm |
| Crank Length | 170mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:designer input