Geometry ?
Whyte Dean 2026 geometry in sizes 48–58: stack 551–620 mm, reach 391–445 mm, head angle 70°.
| 48 | 50 | 52 | 54 | 56 | 58 | |
|---|---|---|---|---|---|---|
| Stack | 551 mm | 563 mm | 577 mm | 591 mm | 605 mm | 620 mm |
| Reach | 391 mm | 396 mm | 400 mm | 425 mm | 430 mm | 445 mm |
| Head angle | 70° | 70° | 70° | 70° | 70° | 70° |
| Seat angle | 74° | 74° | 74° | 74° | 74° | 74° |
| Seat tube (?) | 480 mm | 500 mm | 520 mm | 540 mm | 560 mm | 580 mm |
| Head tube | 115 mm | 130 mm | 145 mm | 160 mm | 175 mm | 190 mm |
| Top tube (effective) | 548 mm | 557 mm | 566 mm | 595 mm | 604 mm | 623 mm |
| Chainstay | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm | 435 mm |
| Wheelbase | 1030 mm | 1040 mm | 1050 mm | 1080 mm | 1090 mm | 1110 mm |
| Standover | 756 mm | 773 mm | 790 mm | 807 mm | 824 mm | 841 mm |
| Stock build by size | ||||||
| Stem | 60 mm | 60 mm | 70 mm | 80 mm | 90 mm | 90 mm |
| Bar width | 420 mm | 440 mm | 460 mm | 460 mm | 480 mm | 480 mm |
| Seatpost setback | 20 mm | 20 mm | 20 mm | 20 mm | 20 mm | 20 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: whytebikes.com, checked 12 Nov 2026 · bar position: worked out from published data
Stock build
Frames with similar geometry
Stack and reach within 12 mm of size 48 (stack 551 / reach 391 mm).
Stack and reach within 12 mm of size 50 (stack 563 / reach 396 mm).
Stack and reach within 12 mm of size 52 (stack 577 / reach 400 mm).
Stack and reach within 12 mm of size 54 (stack 591 / reach 425 mm).
Stack and reach within 12 mm of size 56 (stack 605 / reach 430 mm).
Stack and reach within 12 mm of size 58 (stack 620 / reach 445 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 2 values for this model’s stem and bars. Add them