2026 OXFELD Observer gravel Base XS
Build
28mm BSD × 45 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of OXFELD Observer gravel
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 518mm |
| Reach | 368mm |
| Stack to Reach Ratio | 1.41:1 |
| Seat Tube Length, Unknown | 432mm |
| Top Tube Length, Effective/Horizontal Unknown | 530mm |
| Top Tube Slope | 12deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73.1deg |
| Head Tube Length | 86mm |
| Chainstay Length | 440mm |
| Wheelbase | 1016mm |
| Trail | — — |
| Tire to Pedal Spindle Distance With 170 mm cranks | — |
| Pedal Spindle to Ground Clearance With 170 mm cranks | — |
Base Build
| Wheel Size | 28mm BSD |
| Tire Width | 45mm |
| Tire Outer Diameter | 118mm |
| Bike Length with Tires | 1134mm |
| Crank Length | 170mm |
| Handlebar Width | 420mm |
| Stem Length | 70mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Published Sizing Recommendations
| Height | 12 ft 6 in to |
Source:www.centrumrowerowe.pl