Orbea Terra 2026 geometry
Size chart for fitting. If this bike already feels right, find others with a similar riding position (size L). Category: gravel.
| Size | Stack | Reach | Head tube angle | Seat tube angle | Chainstay | Wheelbase | BB drop |
|---|---|---|---|---|---|---|---|
| L | 597 mm | 398 mm | 72.0° | 73.2° | 430 mm | 1059 mm | 76 mm |
| M | 579 mm | 390 mm | 71.5° | 73.5° | 430 mm | 1047 mm | 76 mm |
| S | 561 mm | 382 mm | 71.0° | 73.7° | 430 mm | 1036 mm | 78 mm |
| XL | 617 mm | 406 mm | 72.0° | 73.0° | 430 mm | 1073 mm | 74 mm |
| XS | 546 mm | 375 mm | 70.5° | 74.0° | 430 mm | 1026 mm | 78 mm |
| XXL | 637 mm | 414 mm | 72.5° | 72.8° | 430 mm | 1087 mm | 74 mm |
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Size guidance
Stack and reach describe the frame's cockpit envelope better than traditional seat-tube sizing. If you know your preferred stack/reach from a bike that already fits, search within a few millimeters first, then check head angle and chainstay for handling feel. See the glossary for stack, reach, and HTA.