Geometry ?
Cyclone GSX 2026 geometry in sizes 52–58: stack 570–640 mm, reach 380–460 mm, head angle 71°.
| 52 | 54 | 56 | 58 | |
|---|---|---|---|---|
| Stack | 570 mm | 600 mm | 620 mm | 640 mm |
| Reach | 380 mm | 405 mm | 435 mm | 460 mm |
| Head angle | 71° | 71° | 71° | 71° |
| Seat angle | 74° | 74° | 74° | 74° |
| Seat tube (?) | 430 mm | 470 mm | 500 mm | 530 mm |
| Head tube | 140 mm | 155 mm | 175 mm | 185 mm |
| BB drop | 80 mm | 80 mm | 80 mm | 80 mm |
| Chainstay | 430 mm | 430 mm | 430 mm | 430 mm |
| Wheelbase | 1029.6 mm | 1040 mm | 1055 mm | 1065 mm |
| Fork offset | 50 mm | 50 mm | 50 mm | 50 mm |
(?) by the seat tube length: the manufacturer doesn’t say whether it’s measured centre to centre (c-c) or centre to top (c-t).
Source: probicyclegroup.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 52 (stack 570 / reach 380 mm).
Stack and reach within 12 mm of size 54 (stack 600 / reach 405 mm).
Stack and reach within 12 mm of size 56 (stack 620 / reach 435 mm).
Stack and reach within 12 mm of size 58 (stack 640 / reach 460 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 6 values for this model’s stem and bars. Add them