2018 Kona Bicycle Company Kahuna Base S
Build
700C/29 in × 2.25 in
Insights
Average 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
View all sizes
Geometry
| Stack | 606mm |
| Reach | 404mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 370mm |
| Top Tube Length, Effective/Horizontal Center | 578mm |
| Top Tube Slope | 26.3deg |
| Head Tube Angle | 69deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 95mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 308.2mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 446mm |
| Front-Center | 671mm |
| Front-Center Horizontal | 668mm |
| Wheelbase | 1114mm |
| Fork Offset/Rake | 51mm |
| Fork Length (On-Axis) | 505mm |
| Trail | 86.7mm very high |
| Mechanical Trail | 80.9mm |
| Wheel Flop | 29mm |
| Standover Height | 730mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 132.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 138.2mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.25in |
| Tire Outer Diameter | 736.3mm |
| Bike Length with Tires | 1850.3mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 100mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
Source:99spokes.com