2023 POSST Oban Base 54
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of performance road bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 555mm |
| Reach | 390mm |
| Stack to Reach Ratio | 1.42:1 |
| Seat Tube Length, C-T | 520mm |
| Top Tube Length, Effective/Horizontal HT Top | 544mm |
| Top Tube Slope | 5.8deg |
| Head Tube Angle | 73deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 138mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 410mm |
| Chainstay Length Horizontal | 404mm |
| Front-Center | 587mm |
| Front-Center Horizontal | 583mm |
| Wheelbase | 987mm |
| Fork Offset/Rake | 43mm |
| Fork Length, Unknown | 370mm |
| Trail | 58.7mm mid/neutral |
| Mechanical Trail | 56.1mm |
| Wheel Flop | 16.4mm |
| Standover Height | 788mm |
| Tire to Pedal Spindle Distance With 172.5 mm cranks | 75.5mm |
| Pedal Spindle to Ground Clearance With 172.5 mm cranks | 96.5mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1665mm |
| Crank Length | 172.5mm |
| Handlebar Width | 42mm |
| Stem Length | 100mm |
| Stem Angle | 8deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 173 cm to 179 cm |
Source:https://www.posst.bike/oban