Principia Gravel C20 geometry
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Size 52cm
Render
Align
Geometry
| Size | 50cm | 52cm | 54cm | 56cm |
|---|---|---|---|---|
| Stack mm | 581.5 | 597.7 | 609.4 | 628.3 |
| Reach mm | 369.6 | 379.4 | 387.6 | 396.5 |
| Head tube angle ° | 70.75 | 71.25 | 71.25 | 71.25 |
| Seat tube angle ° | 73.2 | 73.2 | 72.9 | 72.9 |
| Head tube length mm | 135 | 150 | 165 | 185 |
| Seat tube mm | 500 | 520 | 540 | 560 |
| Chainstay mm | 435 | 435 | 435 | 435 |
| BB drop mm | 82.5 | 82.5 | 80 | 80 |
| Stack to reach | 1.57 | 1.58 | 1.57 | 1.58 |
| Effective top tube mmi | 545 | 560 | 575 | 590 |
Size52cmkey specs
Stack-to-reach (size 52cm)1.58More relaxed (taller and shorter) than 91% of gravel frames in the database at comparable sizes.
Closest geometry matches (size 52cm)
Matched by stack, reach and head tube angle.
More from Principia
Nearest size to the Gravel C20 52cm.
Principia Gravel 20Current50cm · 598.8 / 399Principia Gravel 22TiTANCurrent54cm · 589 / 378Principia Gravel 30Current54cm · 602.75 / 382.2Principia Gravel 40Current56cm · 598 / 398.5Principia Gravel 10 / 20previous generation, undated50cm · 588.61 / 401.76Principia Gravel 30previous generation, undated56cm · 601.16 / 376.93