2025 Oak Twilight Base S
Build
700C/29 in × 28 mm
Insights
Average 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 | 529mm |
| Reach | 383mm |
| Stack to Reach Ratio | 1.38:1 |
| Seat Tube Length, C-T | 480mm |
| Top Tube Length, Actual C-C | 535mm |
| Top Tube Slope | 7.5deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 124mm |
| Bottom Bracket Drop | 71mm |
| Bottom Bracket Height | 268mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 403.8mm |
| Front-Center | 583.5mm |
| Front-Center Horizontal | 579.2mm |
| Wheelbase | 983mm |
| Fork Offset/Rake | 45.1mm |
| Trail | 62.8mm mid/neutral |
| Mechanical Trail | 59.7mm |
| Wheel Flop | 18.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 74.5mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 98mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1661mm |
| 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