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Hongfu FM188

Gravel · 4 sizes

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Bike
Hongfu FM188 · Gravel · 4 sizes · integrated cockpit
Geometry
hongfu-bikes.com, fetched 20 Oct 2026, re-checked, no differences
Cockpit
Generic stem and bar, assumed
Solved with
cover 15 mm (assumed), max spacers 40 mm (assumed), stem clamp centre 20 mm (assumed), so every verdict carries ±10 mm at the bar
Sheet
22 October 2026 · 686 bikes, 74 makes, 3,984 sizes in the catalogue

Geometry, every size, from the maker's table

The tinted row is the size drawn beside it. Press a size to draw it.
Size Stack (mm) Reach (mm) Head angle (deg) Seat angle (deg) Head tube (mm) Chainstay (mm) Wheelbase (mm) Standover (mm)not published
XS / 49 547 369 71 73.5 122 430 1009.9
S / 51 562.1 376.5 71 73.5 138 430 1022.8
M / 55 576.9 384 71 73.5 156 430 1036.5
L / 59 601.6 391.8 71 73.5 182 430 1053.1

The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.

Seat tube 554 mmHead tube 156 mmTop tube 555 mmDown tubeChainstay 430 mmSeat stayFork 1037 mm stack 577reach 384Head tube top 384 / 577BB 0 / 0

The M / 55 drawn to scale from the table, with no build on it. Stack and reach run from the bottom bracket to the top of the head tube; every size is solved from those two. One square is 100 mm.

The maker's cockpit

No stock cockpit I can name, so every size is solved on a generic stem and bar unless you choose one on the sheet.
Generic stem and barAssumedNo bar is listed for this frame.

Frame facts

read from the maker's words, not a table: hongfu-bikes.com
Tyre clearance
700c x 45 mm, 650b x 2 in
Bottom bracket
not recorded yet
Axles and brakes
12x100 / 12x142, flat mount
UDH
not recorded yet
Seatpost
27.2 mm round
Frame weight
1190 g

In the maker's words

Kept whole, as I read it off hongfu-bikes.com.
SOLD AS A FRAMESET by an OEM factory ("I want to inquire"); no bar or stem is specified, so stock stem and bar are null.
Cockpit and seatpost, in the maker's words · 112 words
SOLD AS A FRAMESET by an OEM factory ("I want to inquire"); no bar or stem is specified, so stock stem and bar are null. The catalogue page renders the frame with a one-piece integrated bar and gives "Headset: 1-1/2" * 1-1/2" (FSA)", the specification of a fully internal (through-headset) routed front end, hence integrated_cockpit true; no bar geometry is published. Seatpost 27.2 mm round. Frame: T800/T1000 carbon (catalogue) or Toray T800 UD (2023 page text), BB86 (catalogue) or BSA/BB86 (2023 page), flat mount, 142x12 rear and 100x12 front thru-axles, 140 mm rotors, max tyre 700c x 45 mm or 27.5 x 2.0 in; frame 1070-1190 +/-40 g, fork 477 +/-15 g.
SOURCE: www.hongfu-bikes.com is the maker's own site (HongFu Sports Equipment Co., Ltd). Source: image_table (the maker's own product page carries the geometry as a catalogue page image in the description
How I read the maker's table
Two pages describe the FM188: /products/4.html ("FM188 Internal cable routing", Size: XS, S, M, L; no image) and /products/72.html ("New CX Full carbon gravel bike frame FM188", published 2023-10, which carries the geometry image); the image's spec block (headset 1-1/2" x 1-1/2" FSA, tyre 700c x 45 mm, seatpost 27.2, BB86, sizes XS-L) matches page 4, while page 72's own text says "Headset: top 1-1/8", down 1-1/2"" and "Available sizes: 50/52/54/56/58/60cm", which does not match the table it shows (a copy-paste from another frame, flagged here, not used). TABLE LEGEND (from the lettered diagram): A = seat tube, BB centre along the tube to its top; B = top tube, horizontal (top_tube_effective); C = Reach and D = Stack, from the BB centre to the head tube top; E = head tube; F = seat angle; G = head angle; H = front centre, BB centre to front axle; I = fork length 400 every size (not a schema field); J = BB drop (70 on XS/S, 68 on M/L); K = fork offset 45; RC = chainstay 430; WB = wheelbase. SIZE LABELS: the table's XS/S/M/L with the red cm sizes printed beside each row (49, 51, 55, 59), written "XS / 49". NOT PUBLISHED: standover, trail (null). MODEL YEAR: not printed; image uploaded 2023-10-20; model_year null. Bike Insights lists no FM188 (brand page read 2026-10-20). No Panda Podium, Geometry Geeks or 99 Spokes request was made. Source: image_table (the maker's own product page carries the geometry as a catalogue page image in the description: https://www.hongfu-bikes.com/upload/image/20231020/1697784954809604.jpg, 1937x1300 px, catalogue page 14 "NEW GRAVEL FRAME FM188" with spec block, lettered diagram and table; numbers read by eye, image NOT stored)