2025 Oak Twilight Base M
Build
700C/29 in × 28 mm
Insights
Somewhat aggressive stack and reach vs trend of performance road bikes
Design deviates from other sizes of Oak Twilight
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 545mm |
| Reach | 391mm |
| Stack to Reach Ratio | 1.39:1 |
| Seat Tube Length, C-T | 510mm |
| Top Tube Length, Actual C-C | 546mm |
| Top Tube Slope | 6deg |
| Head Tube Angle | 72.8deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 139mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 589.2mm |
| Front-Center Horizontal | 585mm |
| Wheelbase | 989mm |
| Fork Offset/Rake | 44.9mm |
| Trail | 58mm mid/neutral |
| Mechanical Trail | 55.4mm |
| Wheel Flop | 16.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 80.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 99mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1667mm |
| Handlebar Width | 380mm |
| Stem Length | 110mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.oak.cc/bikes/p/twilight-frameset