Models · BMC · Roadmachine
BMC Roadmachine (2026)
Geometry ?
BMC Roadmachine 2026 geometry in sizes 47–61: stack 525–645 mm, reach 370–398 mm, head angle 71.4–72.2°.
| 47 | 51 | 54 | 56 | 58 | 61 | |
|---|---|---|---|---|---|---|
| Stack | 525 mm | 550 mm | 570 mm | 595 mm | 620 mm | 645 mm |
| Reach | 370 mm | 379 mm | 383 mm | 388 mm | 393 mm | 398 mm |
| Head angle | 71.4° | 71.4° | 72.2° | 72.2° | 72.2° | 72.2° |
| Seat angle | 74.2° | 74.2° | 74.2° | 74.2° | 74.2° | 74.2° |
| Seat tube (c-t) | 414 mm | 461 mm | 488 mm | 508 mm | 529 mm | 550 mm |
| Head tube | 112 mm | 138 mm | 154 mm | 181 mm | 207 mm | 233 mm |
| Top tube (effective) | 520 mm | 537 mm | 546 mm | 559 mm | 571 mm | 581 mm |
| BB drop | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm | 75 mm |
| Chainstay | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm | 415 mm |
| Wheelbase | 982 mm | 1000 mm | 997 mm | 1010 mm | 1023 mm | 1036 mm |
| Standover | 726 mm | 762 mm | 786 mm | 807 mm | 828 mm | 849 mm |
| Fork length | 379 mm | 379 mm | 379 mm | 379 mm | 379 mm | 379 mm |
| Fork offset | 50 mm | 50 mm | 45 mm | 45 mm | 45 mm | 45 mm |
| Stock build by size | ||||||
| Cranks | 170 mm | 170 mm | 172.5 mm | 172.5 mm | 175 mm | 175 mm |
| Stem | 90 mm | 90 mm | 100 mm | 100 mm | 110 mm | 110 mm |
| Stem angle | −8° | −8° | −8° | −8° | −8° | −8° |
| Bar width | 390 mm | 390 mm | 390 mm | 410 mm | 410 mm | 430 mm |
| Seatpost setback | 15 mm | 15 mm | 15 mm | 15 mm | 15 mm | 15 mm |
Source: bmc-switzerland.com, checked 7 Nov 2026 · bar position: worked out from published data
Older model years in the archive: BMC Roadmachine 02 (lower stack) 2017, BMC Roadmachine 02 (higher stack) 2017, BMC Roadmachine 03 2017–2018
Corrected values: bar width
47 bar width 438 → 390 mm, 51 bar width 438 → 390 mm, 54 bar width 438 → 390 mm, 56 bar width 458 → 410 mm, 58 bar width 458 → 410 mm, 61 bar width 478 → 430 mm. The manufacturer gives two widths for these bars: at the hoods and at the drops (the bars are flared). I’d entered the width at the drops by mistake. It’s now the width at the hoods, as for every other bike on sedimi.bike. The bar position isn’t affected. Corrections
Stock build
Roadmachine ONE
- Groupset
- SHIMANO Ultegra Di2 (ST-R8170) / 2×12
- Shifters
- SHIMANO Ultegra Di2 (ST-R8170)
- Cranks
- SHIMANO Ultegra (FC-R8100)
- Stem
- BMC RSM 01
- Handlebar
- BMC HB D4 03, 0, 12 | Alloy 6061 | Endurance Geometry
- Seatpost
- Roadmachine Carbon D-Shaped Seatpost | 15 mm Offset | D-Fender Compatible
- Saddle
- Selle Italia Model, Superflow | FeC Alloy Rail | 145 mm
Roadmachine TWO
- Groupset
- SHIMANO 105 Di2 (ST-R7170) / 2×12
- Shifters
- SHIMANO 105 Di2 (ST-R7170)
- Cranks
- SHIMANO 105 (FC-R7100)
- Stem
- BMC RSM 01
- Handlebar
- BMC HB D4 03, 0, 12 | Alloy 6061 | Endurance Geometry
- Seatpost
- Roadmachine Carbon D-Shaped Seatpost | 15 mm Offset | D-Fender Compatible
- Saddle
- Selle Italia Model, Superflow | FeC Alloy Rail | 145 mm
Roadmachine THREE
- Groupset
- SHIMANO 105 (ST-R7120) / 2×12
- Shifters
- SHIMANO 105 (ST-R7120)
- Cranks
- SHIMANO 105 (FC-R7100)
- Stem
- BMC RSM 01
- Handlebar
- BMC HB D4 03, 0, 12 | Alloy 6061 | Endurance Geometry
- Seatpost
- Roadmachine Carbon D-Shaped Seatpost | 15 mm Offset | D-Fender Compatible
- Saddle
- Selle Italia Model, Superflow | FeC Alloy Rail | 145 mm
Source for all builds: bmc-switzerland.com, checked 7 Nov 2026
Frames with similar geometry
Stack and reach within 12 mm of size 47 (stack 525 / reach 370 mm).
Stack and reach within 12 mm of size 51 (stack 550 / reach 379 mm).
Stack and reach within 12 mm of size 54 (stack 570 / reach 383 mm).
Stack and reach within 12 mm of size 56 (stack 595 / reach 388 mm).
Stack and reach within 12 mm of size 58 (stack 620 / reach 393 mm).
Stack and reach within 12 mm of size 61 (stack 645 / reach 398 mm).
Spotted a mistake or a missing build? Let me know.