Geometry ?
Hongfu FM088 2018 geometry in sizes 450–580: stack 501–578 mm, reach 370–398 mm, head angle 71–73.5°.
| 450 | 480 | 500 | 520 | 540 | 560 | 580 | |
|---|---|---|---|---|---|---|---|
| Stack | 501 mm | 512 mm | 519 mm | 522 mm | 543 mm | 557 mm | 578 mm |
| Reach | 370 mm | 374 mm | 381 mm | 385.6 mm | 384 mm | 395 mm | 398 mm |
| Head angle | 71° | 71.5° | 72° | 72.5° | 73° | 73° | 73.5° |
| Seat angle | 75° | 74.5° | 74.5° | 74° | 73.5° | 73.5° | 73° |
| Head tube | 100 mm | 110 mm | 115 mm | 118 mm | 140 mm | 155 mm | 175 mm |
| Top tube (effective) | 505 mm | 515 mm | 525 mm | 535 mm | 545 mm | 560 mm | 575 mm |
| BB drop | 72 mm | 72 mm | 72 mm | 69 mm | 69 mm | 69 mm | 69 mm |
| Chainstay | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm | 410 mm |
| Wheelbase | 964.4 mm | 967.3 mm | 972.5 mm | 974.5 mm | 975 mm | 990 mm | 995 mm |
| Fork length | 368 mm | 368 mm | 368 mm | 368 mm | 368 mm | 368 mm | 368 mm |
| Fork offset | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm | 45 mm |
Source: hongfu-bikes.com, checked 13 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 450 (stack 501 / reach 370 mm).
Stack and reach within 12 mm of size 480 (stack 512 / reach 374 mm).
Stack and reach within 12 mm of size 500 (stack 519 / reach 381 mm).
Stack and reach within 12 mm of size 520 (stack 522 / reach 385.6 mm).
Stack and reach within 12 mm of size 540 (stack 543 / reach 384 mm).
Stack and reach within 12 mm of size 560 (stack 557 / reach 395 mm).
Stack and reach within 12 mm of size 580 (stack 578 / reach 398 mm).
Spotted a mistake or a missing build? Let me know.
Are you the manufacturer, or do you sell this bike? I’m missing 9 values for this model’s stem and bars. Add them