2026 Dolan Bikes DF4 Base 51.5cm
Build
700C/29 in × 23 mm
Insights
Somewhat aggressive stack and reach vs trend of track/fixed-gear bikes
Design deviates from other sizes of Dolan Bikes DF4
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 477mm |
| Reach | 393mm |
| Stack to Reach Ratio | 1.21:1 |
| Seat Tube Length, C-T | 460mm |
| Top Tube Length, Effective/Horizontal Center | 515mm |
| Top Tube Slope | 3.7deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 75deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 274mm |
| Chainstay Length | 380mm |
| Chainstay Length Horizontal | 375.2mm |
| Front-Center | 575mm |
| Front-Center Horizontal | 571.8mm |
| Wheelbase | 947mm |
| Fork Offset/Rake | 43mm |
| Trail | 54.1mm mid/neutral |
| Mechanical Trail | 51.9mm |
| Wheel Flop | 14.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 71mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 104mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 23mm |
| Tire Outer Diameter | 668mm |
| Bike Length with Tires | 1615mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | N/A |
| Features | Single-speed capable |
Source:https://www.dolan-bikes.com/df4-frameset/?srsltid=AfmBOorWmqGsYOtCiyXUBT2TC-wdk_hSsqIHkVzRvZWdYdJqfmiJdaSG