2026 Koba Protool Base XL
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of Koba Protool
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 589mm |
| Reach | 402mm |
| Stack to Reach Ratio | 1.47:1 |
| Seat Tube Length, C-C | 522mm |
| Top Tube Length, Effective/Horizontal Center | 576mm |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 190mm |
| Bottom Bracket Drop | 68mm |
| Bottom Bracket Height | 271mm |
| Chainstay Length Horizontal | 408mm |
| Front-Center | 600.9mm |
| Front-Center Horizontal | 597mm |
| Wheelbase | 1005mm |
| Fork Offset/Rake | 44mm |
| Fork Length (Axle-To-Crown) | 368mm |
| Trail | 54.5mm mid/neutral |
| Mechanical Trail | 52.3mm |
| Wheel Flop | 14.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 91.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 101mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1683mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 186 cm to 210 cm |
Source:https://koba.ch/de/bike_configurations/58155?modal=true