2025 OnebyESU JFF #503 OBS-R11 fork 480mm
Build
700C/29 in × 28 mm
Insights
Average stack and reach vs trend of performance road bikes
Design deviates from other sizes of OnebyESU JFF #503
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 487.3mm |
| Reach | 360.7mm |
| Stack to Reach Ratio | 1.35:1 |
| Seat Tube Length, C-T | 480mm |
| Top Tube Length, Effective/Horizontal HT Top | 505mm |
| Top Tube Slope | 3.1deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 80mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 269mm |
| Chainstay Length | 407mm |
| Chainstay Length Horizontal | 400.9mm |
| Front-Center | 560.6mm |
| Front-Center Horizontal | 556.2mm |
| Wheelbase | 957.1mm |
| Fork Offset/Rake | 53mm |
| Fork Length (On-Axis) | 366mm |
| Trail | 57.5mm mid/neutral |
| Mechanical Trail | 54.6mm |
| Wheel Flop | 17.3mm |
| Standover Height | 734.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 51.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 99mm |
OBS-R11 fork Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 28mm |
| Tire Outer Diameter | 678mm |
| Bike Length with Tires | 1635.1mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Carbon/Composite |
| Brake Type | Rim |
Published Sizing Recommendations
| Height | 160 cm to 168 cm |
Source:https://onebyesu.tokyo-san-esu.com/category/frames/jff_503.html, https://onebyesu.tokyo-san-esu.com/category/forks/r11.html