Trifox X12
Road · 4 sizes
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- Bike
- Trifox X12 · Road · 4 sizes
- Geometry
- trifoxbike.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.The table runs on to the right: 6 more columns after Reach. Scroll it sideways to read them.
The M-558 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. A dashed tube is a number the maker left out (est.).
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: trifoxbike.com- Tyre clearance
- not recorded yet
- Bottom bracket
- BSA 68
- Axles and brakes
- QR
- UDH
- not recorded yet
- Seatpost
- proprietary
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off trifoxbike.com.The page's specification table, verbatim: Frame: 3K Weave, T800 carbon fiber, V brake braking system, 43mm fork rake/offset.
Cockpit and seatpost, in the maker's words · 163 words
The page's specification table, verbatim: Frame: 3K Weave, T800 carbon fiber, V brake braking system, 43mm fork rake/offset. Fit for DI2 & Mechanical, BSA - BB68 (φ 34mm, L 68mm), φ10x130mm Quick Release; Type: Road Bike Frame; Fork: 43mm fork rake/offset; φ9x100mm Quick Release; Max Wheels & Tire Size: 700 * 25C, Compatible with TRIFOX Ultra-lightweight Carbon Fiber WT17 Wheelset; Seatpost insertion length: 7-12cm; Finish: Matte black with glossy color painting; Headset: 1-1/8" To 1-1/2" Tapered Integrated design; Saddle installation method: Lock up and down; Warranty: 2 years; Weight: XS - 510mm--1077g ± 20g S - 534mm--1125g ± 20g M - 558mm--1192g ± 20g L - 582mm--1199g ± 20g AERO Fork--368g ± 2g AERO Seatpost--243g ± 2g AERO Stem - 90mm--195g ± 2g AERO Stem - 100mm--196g ± 2g AERO Stem - 110mm--197g ± 2; Package Content: 1 x AERO Carbon Road Bike Frame X12 1 x AERO Fork 1 x AERO SeatPost 1 x Headset 1 x Aerostem 1 x Seatpost Clamp.
SOURCE: www.trifoxbike.com is Trifox's own store (Xiamen). Source: html table (maker's own store page, "Product Geometry" HTML table keyed by letter to a geometry drawing, each row also named; parsed from the raw HTML)
How I read the maker's table
The geometry table names every row beside its drawing letter (A (°) = Head Tube Angle, B (°) = Seat Tube Angle, C (mm) = Chainstay Length, D (mm) = BB Drop, F (mm) = Seat Tube Length, G (mm) = Stack, H (mm) = Top Tube Length Horizontal, I (mm) = Reach, J (mm) = Head Tube Length, K (mm) = Fork Length Full); "Top Tube Length Horizontal" is top_tube_effective. fork_offset 43 mm comes from the page's own specification table ("43 mm fork rake/offset"), not from the geometry table. Rows not in the schema: K (mm) Fork Length Full 368 / 368 / 368 / 368. STACK DATUM: not stated; recorded as the usual head tube top. NOT PUBLISHED: front centre, standover, trail (null), and the wheelbase. FLAGGED: the Stack row prints 510 / 534 / 558 / 582, the same numbers as the size names XS-510 / S-534 / M-558 / L-582, and on M and L reach + stack / tan(seat angle) comes out 5.1 and 11.0 mm shorter than the printed top tube (XS and S close within 2 mm); the stack row may be the size names copied in, kept as printed for Carl to judge. Size labels exactly as the table heads its columns. MODEL YEAR: not printed; model_year null. No Panda Podium, Geometry Geeks or 99 Spokes request was made.