2025 Knightwood Rune Bicycles gravel Base Small 52cm
Build
650B/27.5 in × 2.3 mm
Insights
Average 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 | 542.2mm |
| Reach | 374.5mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, Effective Unknown | 520mm |
| Top Tube Length, Effective/Horizontal Unknown | 530mm |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 229.3mm |
| Chainstay Length | 440mm |
| Chainstay Length Horizontal | 435.2mm |
| Front-Center | 591mm |
| Front-Center Horizontal | 587.4mm |
| Wheelbase | 1022.6mm |
| Fork Offset/Rake | 55mm |
| Fork Length, Unknown | 395mm |
| Trail | 37.8mm low |
| Mechanical Trail | 35.9mm |
| Wheel Flop | 11.1mm |
| Standover Height | 810.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 126.7mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 59.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.3mm |
| Tire Outer Diameter | 588.6mm |
| Bike Length with Tires | 1611.2mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
| Features | Single-speed capable |
Source:https://www.runebicycles.com/shop/p/rufus-stone-pre-order-black