Trek Speed Concept
Time trial · 4 sizes
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- Bike
- Trek Speed Concept · Time trial · 4 sizes · integrated cockpit
- Geometry
- api.trekbikes.com, fetched 22 Oct 2026, re-checked, no differences
- Seat angle convention
- Calculated from Trek's table
- Cockpit
- Generic stem and bar, assumed
- Solved with
- cover 10 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 · 879 bikes, 79 makes, 4,979 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 L 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
not read off the maker's page yet: api.trekbikes.com- Tyre clearance
- not recorded yet
- Bottom bracket
- not recorded yet
- Axles and brakes
- not recorded yet
- UDH
- not recorded yet
- Seatpost
- not recorded yet
- Frame weight
- not recorded yet
In the maker's words
Kept whole, as I read it off api.trekbikes.com.Trek's sizing feed carries no bar or stem rows for the Speed Concept; no cockpit was read for this file.
Cockpit and seatpost, in the maker's words · 20 words
Trek's sizing feed carries no bar or stem rows for the Speed Concept; no cockpit was read for this file.
OFFICIAL SOURCE: Trek OCC sizing feed for code 22054, the Speed Concept (product record name "Speed Concept", primary image SpeedConcept_21_22054, so model year 2021 from Trek's image id), geometry asset Geometry_14791_Speed_Concept, four letter sizes S, M, L, XL. Source: html table (official Trek OCC JSON that renders the "Sizing and fit" geometry table of the trekbikes.com product page
How I read the maker's table
Triathlon and time trial frame, the one before the Speed Concept SLR of MY2022 (trek-speed-concept-slr.json: 30 of 36 shared cells differ, and that one has no XL). The seat angle is printed 78 on every size. Saddle rail height ranges are in the feed but not in the schema: geometrySaddleRailHeightMinShort 59.9/62.5/64.9/67.3 cm and geometrySaddleRailHeightMaxTall 74.7/77.2/79.6/82.0 cm (S to XL). Bike Insights files this feed as its Speed Concept 2020. UNITS: Trek publishes the table in centimetres to one decimal and angles in degrees; every length was multiplied by 10 to give millimetres (Decimal arithmetic, exact, no rounding). Column mapping from Trek's geometryDataHeaders: geometrySeattube -> seat_tube_length, geometryAngleSeattube -> seat_tube_angle, geometryLengthHeadtube -> head_tube_length, geometryAngleHead -> head_tube_angle, geometryEffToptube -> top_tube_effective, geometryBBDrop -> bb_drop, geometryLengthChainstay -> chainstay, geometryOffset -> fork_offset, geometryTrail -> trail, geometryWheelbase -> wheelbase, geometryStandover -> standover, geometryFrameReach -> reach, geometryFrameStack -> stack (Trek's frame stack and reach, so stack_datum head tube top). Front centre is not in this feed (null).
Source: html table (official Trek OCC JSON that renders the "Sizing and fit" geometry table of the trekbikes.com product page, https://api.trekbikes.com/occ/v2/gb/products/22054/sizing, Speed Concept; fetched 2026-10-22, HTTP 200)