2021 Koga Colmaro Extreme S
Build
650B/27.5 in × 47 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Koga Colmaro
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 547mm |
| Reach | 376mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, Unknown | 460mm |
| Top Tube Length, Effective/Horizontal Unknown | 544mm |
| Top Tube Slope | 11.9deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 435mm |
| Chainstay Length Horizontal | 428.5mm |
| Front-Center | 595.6mm |
| Front-Center Horizontal | 590.9mm |
| Wheelbase | 1019.4mm |
| Fork Offset/Rake | 45mm |
| Trail | 72.3mm high |
| Mechanical Trail | 68.2mm |
| Wheel Flop | 22.8mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 86.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 94mm |
Extreme Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 47mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1697.4mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 160 cm to 172 cm |
Source:KOGA Bicycles