Geometry ?
Chumba Terlingua Steel 2026 geometry in sizes 50–60: stack 531–614 mm, reach 369–402 mm, head angle 71–72°.
| 50 | 52 | 54 | 56 | 58 | 60 | |
|---|---|---|---|---|---|---|
| Stack | 531 mm | 550 mm | 558 mm | 577 mm | 595 mm | 614 mm |
| Reach | 369 mm | 371 mm | 379 mm | 393 mm | 397 mm | 402 mm |
| Head angle | 71° | 71° | 71.5° | 71.5° | 72° | 72° |
| Seat angle | 74.5° | 74° | 73.5° | 73.5° | 73° | 73° |
| Seat tube (?) | 485 mm | 500 mm | 515 mm | 530 mm | 545 mm | 560 mm |
| Head tube | 100 mm | 120 mm | 130 mm | 150 mm | 170 mm | 190 mm |
| Top tube (effective) | 518 mm | 530 mm | 545 mm | 565 mm | 580 mm | 590 mm |
| BB drop | 71 mm | 71 mm | 68 mm | 68 mm | 65 mm | 65 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: chumbausa.com, checked 12 Nov 2026 · bar position: worked out from published data
Build
You put the build together when you order from the manufacturer, so the bike has no fixed stock build. According to the manufacturer’s website.
Frames with similar geometry
Stack and reach within 12 mm of size 50 (stack 531 / reach 369 mm).
Stack and reach within 12 mm of size 52 (stack 550 / reach 371 mm).
Stack and reach within 12 mm of size 54 (stack 558 / reach 379 mm).
Stack and reach within 12 mm of size 56 (stack 577 / reach 393 mm).
Stack and reach within 12 mm of size 58 (stack 595 / reach 397 mm).
Stack and reach within 12 mm of size 60 (stack 614 / reach 402 mm).
Spotted a mistake or a missing build? Let me know.