2023 POSST Object Base 58
Build
700C/29 in × 28 mm
Insights
Somewhat upright stack and reach vs trend of performance road bikes
Design deviates from other sizes of POSST Object
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 600mm |
| Reach | 397mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-T | 560mm |
| Top Tube Length, Effective/Horizontal HT Top | 575mm |
| Top Tube Slope | 6.5deg |
| Head Tube Angle | 73.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 181mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 264mm |
| Chainstay Length | 415mm |
| Chainstay Length Horizontal | 408.2mm |
| Front-Center | 602mm |
| Front-Center Horizontal | 606.8mm |
| Wheelbase | 1015mm |
| Fork Offset/Rake | 43mm |
| Fork Length, Unknown | 367mm |
| Trail | 55.6mm mid/neutral |
| Mechanical Trail | 53.3mm |
| Wheel Flop | 15.1mm |
| Standover Height | 807mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 88mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 89mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1693mm |
| Crank Length | 175mm |
| Handlebar Width | 440mm |
| Stem Length | 110mm |
| Stem Angle | 8deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 182 cm to 187 cm |
| PBH | 82 cm to 86 cm |
Source:https://www.posst.bike/object