Geometry ?
Trifox X18 2026 geometry in sizes 44–58: stack 491–581 mm, reach 369–405 mm, head angle 70.5–73.5°.
| 44 | 46 | 49 | 52 | 56 | 58 | |
|---|---|---|---|---|---|---|
| Stack | 491 mm | 492 mm | 504 mm | 517 mm | 555 mm | 581 mm |
| Reach | 369 mm | 373 mm | 378 mm | 383 mm | 398 mm | 405 mm |
| Head angle | 70.5° | 71° | 71.8° | 72.5° | 73.5° | 73.5° |
| Seat angle | 75.5° | 75.5° | 75.5° | 74° | 73.5° | 73.5° |
| Head tube | 93 mm | 95 mm | 102 mm | 113 mm | 151 mm | 178 mm |
| Top tube (effective) | 496 mm | 500 mm | 509 mm | 531 mm | 563 mm | 577 mm |
| BB drop | 74 mm | 74 mm | 74 mm | 74 mm | 72 mm | 72 mm |
| Chainstay | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm |
| Wheelbase | 975 mm | 978 mm | 978 mm | 980 mm | 996 mm | 1011 mm |
| Fork length | 366 mm | 366 mm | 366 mm | 366 mm | 366 mm | 366 mm |
| Fork offset | 47 mm | 47 mm | 47 mm | 47 mm | 47 mm | 47 mm |
Source: trifoxbike.com, checked 13 Nov 2026 · bar position: worked out from published data
Stock build
I don’t have the build for each size yet.
Frames with similar geometry
Stack and reach within 12 mm of size 44 (stack 491 / reach 369 mm).
Stack and reach within 12 mm of size 46 (stack 492 / reach 373 mm).
Stack and reach within 12 mm of size 49 (stack 504 / reach 378 mm).
Stack and reach within 12 mm of size 52 (stack 517 / reach 383 mm).
Stack and reach within 12 mm of size 56 (stack 555 / reach 398 mm).
Stack and reach within 12 mm of size 58 (stack 581 / reach 405 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 8 values for this model’s stem and bars. Add them