Models · Ritchey · Road Logic
Ritchey Road Logic Disc (2026)
Geometry ?
Ritchey Road Logic Disc 2026 geometry in sizes 51cm–59cm: stack 531–610 mm, reach 385–409 mm, head angle 72.5–74°.
| 51cm | 53cm | 55cm | 57cm | 59cm | |
|---|---|---|---|---|---|
| Stack | 531 mm | 551 mm | 570 mm | 589 mm | 610 mm |
| Reach | 385 mm | 390 mm | 394 mm | 400 mm | 409 mm |
| Head angle | 72.5° | 73° | 73.5° | 73.5° | 74° |
| Seat angle | 74.5° | 74° | 73.5° | 73.5° | 73.5° |
| Seat tube (c-t) | 485 mm | 505 mm | 525 mm | 545 mm | 565 mm |
| Head tube | 120 mm | 140 mm | 160 mm | 180 mm | 200 mm |
| Top tube (effective) | 532 mm | 548 mm | 563 mm | 575 mm | 590 mm |
| BB drop | 72 mm | 72 mm | 70 mm | 70 mm | 70 mm |
| Chainstay | 410 mm | 415 mm | 415 mm | 415 mm | 415 mm |
| Wheelbase | 981 mm | 993 mm | 999 mm | 1011 mm | 1021 mm |
| Standover | 757 mm | 777 mm | 797 mm | 816 mm | 836 mm |
| Fork length | 371 mm | 371 mm | 371 mm | 371 mm | 371 mm |
| Fork offset | 46 mm | 46 mm | 46 mm | 46 mm | 46 mm |
Source: ritcheylogic.com, checked 1 Nov 2026 · bar position: worked out from published data
Older model years in the archive with the same stack, reach and head angle: 2023–2024. Source: starbike.com
Older model years in the archive: Ritchey Road Logic Disc 2020
Stock build
I don’t have the build for each size yet.
Frames with similar geometry
Stack and reach within 12 mm of size 51cm (stack 531 / reach 385 mm).
Stack and reach within 12 mm of size 53cm (stack 551 / reach 390 mm).
Stack and reach within 12 mm of size 55cm (stack 570 / reach 394 mm).
Stack and reach within 12 mm of size 57cm (stack 589 / reach 400 mm).
Stack and reach within 12 mm of size 59cm (stack 610 / reach 409 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