Geometry ?
Twitter G2 Max 2026 geometry in sizes S–XXL: stack 564–633 mm, reach 373–401 mm, head angle 71.8–72.5°.
| S | M | L | XL | XXL | |
|---|---|---|---|---|---|
| Stack | 564 mm | 576 mm | 600 mm | 619 mm | 633 mm |
| Reach | 373 mm | 380 mm | 382 mm | 391 mm | 401 mm |
| Head angle | 71.8° | 72.5° | 72.5° | 72.5° | 72.5° |
| Seat angle | 74° | 73.5° | 73° | 73° | 73° |
| Seat tube (?) | 450 mm | 480 mm | 510 mm | 540 mm | 570 mm |
| Head tube | 140 mm | 150 mm | 175 mm | 195 mm | 205 mm |
| Top tube (effective) | 535 mm | 551 mm | 566 mm | 581 mm | 595 mm |
| BB drop | 70 mm | 70 mm | 70 mm | 70 mm | 70 mm |
| Chainstay | 440 mm | 440 mm | 440 mm | 440 mm | 440 mm |
| Wheelbase | 1017 mm | 1021 mm | 1031 mm | 1046 mm | 1060 mm |
| Fork length | 395 mm | 395 mm | 395 mm | 395 mm | 395 mm |
| Fork offset | 45 mm | 45 mm | 45 mm | 45 mm | 45 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: twitterbikeusa.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 S (stack 564 / reach 373 mm).
Stack and reach within 12 mm of size M (stack 576 / reach 380 mm).
Stack and reach within 12 mm of size L (stack 600 / reach 382 mm).
Stack and reach within 12 mm of size XL (stack 619 / reach 391 mm).
Stack and reach within 12 mm of size XXL (stack 633 / reach 401 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