Geometry ?
Sour Space Cake 2026 geometry in sizes XS–XXL: stack 536–615 mm, reach 367–390 mm, head angle 71–73°.
| XS | S | M | L | XL | XXL | |
|---|---|---|---|---|---|---|
| Stack | 536 mm | 554 mm | 569 mm | 587 mm | 599 mm | 615 mm |
| Reach | 367 mm | 370 mm | 375 mm | 381 mm | 384 mm | 390 mm |
| Head angle | 71° | 71.5° | 71.5° | 72° | 72.5° | 73° |
| Seat angle | 74° | 73.5° | 73° | 72.5° | 72° | 72° |
| Seat tube (?) | 440 mm | 490 mm | 520 mm | 560 mm | 590 mm | 630 mm |
| Head tube | 100 mm | 120 mm | 135 mm | 150 mm | 165 mm | 180 mm |
| Top tube (effective) | 522 mm | 535 mm | 545 mm | 563 mm | 578 mm | 590 mm |
| BB drop | 76 mm | 76 mm | 76 mm | 76 mm | 76 mm | 76 mm |
| Chainstay | 428 mm | 428 mm | 428 mm | 428 mm | 428 mm | 428 mm |
| Wheelbase | 995 mm | 1004 mm | 1011 mm | 1018 mm | 1021 mm | 1024 mm |
| Fork length | 392 mm | 392 mm | 392 mm | 392 mm | 392 mm | 392 mm |
| Fork offset | 45 mm | 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: sour.bike, checked 7 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 536 / reach 367 mm).
Stack and reach within 12 mm of size S (stack 554 / reach 370 mm).
Stack and reach within 12 mm of size M (stack 569 / reach 375 mm).
Stack and reach within 12 mm of size L (stack 587 / reach 381 mm).
Stack and reach within 12 mm of size XL (stack 599 / reach 384 mm).
Stack and reach within 12 mm of size XXL (stack 615 / reach 390 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