Geometry ?
Bombtrack Hook EXT 2026 geometry in sizes XS–XL: stack 558–631 mm, reach 360–403 mm, head angle 70.9–71.5°.
| XS | S | M | L | XL | |
|---|---|---|---|---|---|
| Stack | 558 mm | 577 mm | 593 mm | 612 mm | 631 mm |
| Reach | 360 mm | 369 mm | 381 mm | 390 mm | 403 mm |
| Head angle | 70.9° | 70.9° | 71.5° | 71.5° | 71.5° |
| Seat angle | 73.9° | 73.9° | 73.5° | 73.5° | 73° |
| Seat tube (?) | 460 mm | 500 mm | 530 mm | 570 mm | 600 mm |
| Head tube | 110 mm | 130 mm | 150 mm | 170 mm | 190 mm |
| Top tube (effective) | 520 mm | 534 mm | 558 mm | 572 mm | 597 mm |
| BB drop | 71 mm | 71 mm | 66 mm | 66 mm | 66 mm |
| Chainstay | 425 mm | 425 mm | 425 mm | 425 mm | 425 mm |
| Wheelbase | 1003 mm | 1018 mm | 1034 mm | 1049 mm | 1068 mm |
| Standover | 753 mm | 782 mm | 805 mm | 834 mm | 857 mm |
| Fork length | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Fork offset | 53 mm | 53 mm | 53 mm | 53 mm | 53 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: cdn.shopify.com, checked 12 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 XS (stack 558 / reach 360 mm).
Stack and reach within 12 mm of size S (stack 577 / reach 369 mm).
Stack and reach within 12 mm of size M (stack 593 / reach 381 mm).
Stack and reach within 12 mm of size L (stack 612 / reach 390 mm).
Stack and reach within 12 mm of size XL (stack 631 / reach 403 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 7 values for this model’s stem and bars. Add them