2026 Marin Bikes Headlands 3 56
Build
700C/29 in × 45 mm
Insights
Average stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 600.8mm |
| Reach | 386.4mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Length, Effective/Horizontal Center | 559mm |
| Top Tube Slope | 11.9deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 160mm |
| Bottom Bracket Drop | 76mm |
| Bottom Bracket Height | 280mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 413.1mm |
| Front-Center | 623.6mm |
| Front-Center Horizontal | 618.9mm |
| Wheelbase | 1032mm |
| Fork Offset/Rake | 50mm |
| Trail | 73mm high |
| Mechanical Trail | 68.8mm |
| Wheel Flop | 23mm |
| Standover Height | 725mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 92.6mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 105mm |
3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 712mm |
| Bike Length with Tires | 1744mm |
| Crank Length | 175mm |
| Handlebar Width | 440mm |
| Stem Length | 60mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.balfesbikes.co.uk/bikes/gravel-adventure-bikes/marin-headlands-3-gravel-bike-2026-in-green__98449