2025 Knightwood Rune Bicycles gravel Base M
Build
650B/27.5 in × 48 mm
Insights
Somewhat upright stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of Rune Bicycles gravel
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 569.7mm |
| Reach | 369.9mm |
| Stack to Reach Ratio | 1.54:1 |
| Seat Tube Length, C-C | 550mm |
| Top Tube Length, Effective/Horizontal Center | 559.9mm |
| Top Tube Length, Actual C-C | 555mm |
| Top Tube Slope | 1.6deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 72deg |
| Head Tube Length | 155mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 275mm |
| Chainstay Length | 425mm |
| Chainstay Length Horizontal | 420mm |
| Front-Center | 585.3mm |
| Front-Center Horizontal | 581.7mm |
| Wheelbase | 1001.7mm |
| Fork Offset/Rake | 55mm |
| Fork Length (Axle-To-Crown) | 380mm |
| Trail | 46.4mm mid/neutral |
| Mechanical Trail | 44.4mm |
| Wheel Flop | 13mm |
| Standover Height | 825.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 75.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 105mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 48mm |
| Tire Outer Diameter | 680mm |
| Bike Length with Tires | 1681.7mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
| Features | Single-speed capable |
Source:www.runebicycles.com