Geometry ?
Hard Rocx GT1 / GT2 2026 geometry in sizes 46–58: stack 528.3–609.9 mm, reach 363.5–382.7 mm, head angle 70.5–72°.
| 46 | 49 | 52 | 54 | 56 | 58 | |
|---|---|---|---|---|---|---|
| Stack | 528.3 mm | 537.8 mm | 558.6 mm | 570 mm | 590.9 mm | 609.9 mm |
| Reach | 363.5 mm | 375.9 mm | 374.8 mm | 376.2 mm | 379.3 mm | 382.7 mm |
| Head angle | 70.5° | 70.5° | 71° | 71.5° | 72° | 72° |
| Seat angle | 74.5° | 74.5° | 74° | 73.5° | 73° | 72.5° |
| Head tube | 110 mm | 120 mm | 140 mm | 150 mm | 170 mm | 190 mm |
| Chainstay | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1008.7 mm | 1024.4 mm | 1025.8 mm | 1026 mm | 1031 mm | 1040.5 mm |
Source: hardrocx.no, 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 46 (stack 528.3 / reach 363.5 mm).
Stack and reach within 12 mm of size 49 (stack 537.8 / reach 375.9 mm).
Stack and reach within 12 mm of size 52 (stack 558.6 / reach 374.8 mm).
Stack and reach within 12 mm of size 54 (stack 570 / reach 376.2 mm).
Stack and reach within 12 mm of size 56 (stack 590.9 / reach 379.3 mm).
Stack and reach within 12 mm of size 58 (stack 609.9 / reach 382.7 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