2026 Dolan Bikes DF4 Base
- Category
- Track/Fixed-gear
- Design
- Drop Bar, Rigid, non-suspension corrected
- Frame
- Carbon/Composite
- Fork
- Carbon/Composite
- Features
- N/A brake, Single-speed capable
Geometry
51.5cm | 53cm | 55cm | 57cm | 59cm | 61cm | |
Stack | 477mm | 479mm | 498mm | 498mm | 519mm | 519mm |
Reach | 393mm | 401mm | 414mm | 434mm | 451mm | 471mm |
Stack to Reach Ratio | 1.21:1 | 1.19:1 | 1.2:1 | 1.15:1 | 1.15:1 | 1.1:1 |
Seat Tube Length, C-T | 460mm | 487mm | 505mm | 505mm | 530mm | 530mm |
Top Tube Length, Effective/Horizontal Center | 515mm | 530mm | 550mm | 570mm | 590mm | 610mm |
Top Tube Slope | 3.7deg | 0.9deg | 1.2deg | 1.1deg | 0.7deg | 0.7deg |
Head Tube Angle | 73.5deg | 74deg | 74deg | 74deg | 74.5deg | 74.5deg |
Seat Tube Angle | 75deg | 75deg | 74.5deg | 74.5deg | 75deg | 75deg |
Head Tube Length | 100mm | 100mm | 120mm | 120mm | 140mm | 140mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 274mm | 274mm | 274mm | 274mm | 274mm | 274mm |
Chainstay Length | 380mm | 380mm | 380mm | 380mm | 380mm | 380mm |
Chainstay Length Horizontal | 375.2mm | 375.2mm | 375.2mm | 375.2mm | 375.2mm | 375.2mm |
Front-Center | 575mm | 579mm | 595mm | 619mm | 636mm | 656mm |
Front-Center Horizontal | 571.8mm | 576.8mm | 591.8mm | 614.8mm | 633.8mm | 653.8mm |
Wheelbase | 947mm | 952mm | 967mm | 990mm | 1009mm | 1029mm |
Fork Offset/Rake | 43mm | 43mm | 43mm | 43mm | 43mm | 43mm |
Trail | 54.1mm mid/neutral | 51mm mid/neutral | 51mm mid/neutral | 51mm mid/neutral | 48mm mid/neutral | 48mm mid/neutral |
Mechanical Trail | 51.9mm | 49.1mm | 49.1mm | 49.1mm | 46.3mm | 46.3mm |
Wheel Flop | 14.7mm | 13.5mm | 13.5mm | 13.5mm | 12.4mm | 12.4mm |
Tire to Pedal Spindle | 71mm 170 mm cranks | 75mm 170 mm cranks | 91mm 170 mm cranks | 115mm 170 mm cranks | 132mm 170 mm cranks | 152mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks | 104mm 170 mm cranks |
Base Build
51.5cm | 53cm | 55cm | 57cm | 59cm | 61cm | |
Wheel Size | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD | 700C/29 in 622 mm BSD |
Tire Width | 23mm | 23mm | 23mm | 23mm | 23mm | 23mm |
Tire Outer Diameter | 668mm | 668mm | 668mm | 668mm | 668mm | 668mm |
Bike Length with Tires | 1615mm | 1620mm | 1635mm | 1658mm | 1677mm | 1697mm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Track/Fixed-gearSource:https://www.dolan-bikes.com/df4-frameset/?srsltid=AfmBOorWmqGsYOtCiyXUBT2TC-wdk_hSsqIHkVzRvZWdYdJqfmiJdaSG