2025 Orbea Urrun Base S
Build
700C/29 in × 2.3 in
Insights
Somewhat upright stack and reach vs trend of hardtail cross-country mtb bikes
Stack and Reach vs. Category Trend
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Geometry
| Stack | 625mm |
| Reach | 410mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, C-T | 400mm |
| Top Tube Length, Effective/Horizontal Center | 575mm |
| Top Tube Slope | 24.9deg |
| Head Tube Angle | 66deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 100mm |
| Bottom Bracket Drop | 63mm |
| Bottom Bracket Height | 306.4mm |
| Chainstay Length | 445mm |
| Chainstay Length Horizontal | 440.5mm |
| Front-Center | 711.3mm |
| Front-Center Horizontal | 708.5mm |
| Wheelbase | 1149mm |
| Fork Offset/Rake | 44mm |
| Fork Length (Axle-To-Crown) | 534mm |
| Trail | 116.3mm very high |
| Mechanical Trail | 106.3mm |
| Wheel Flop | 43.2mm |
| Standover Height | 771.9mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 171.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 136.4mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.3in |
| Tire Outer Diameter | 738.8mm |
| Bike Length with Tires | 1887.8mm |
| Crank Length | 170mm |
| Handlebar Width | 720mm |
| Stem Length | 40mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 120mm |
| Suspension Sag | 20% |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Disc |
| Features | E-bike |
Published Sizing Recommendations
| Height | 155 cm to 170 cm |
Source:https://orbea.dash.app/browse/67e2043d-b134-4504-aa27-e009492c99c1?portal=orbea-manuals