Seatpost parts for the Surly Disc Trucker 700c (2024)

We have not verified this bike yet

13 of the 16 measurements are on file; 0 confirmed by two independent sources. Without enough evidence, fit stays “unknown.”

Only universal parts (lube, tools, bar tape) are offered for this bike until verification.

Surly Disc Trucker 700c (2024)

The seatpost of the Surly Disc Trucker 700c (2024): 3 slots — Seatpost, Dropper post and Seat clamp. 2 fit facts on file for this region. The parts menu below lists every catalogued part that belongs here with its computed verdict — fits, fits with adapter, does not fit or unknown — and why.

Seatpost diameter	27.2 mm (single-source)
Seatpost shape	Round (single-source)

What does "unknown" mean on this page?: That we do not have, on file, the bike measurement this part needs. It is not a quiet "yes": until the measurement is on file, we do not sell the part for this bike.

Slots in this region

Seatpost
Dropper post
Seat clamp

Salsa Lip-Lock seat collar 30.0 mm
Seat clamp
fits · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Seat clamp diameter: bike 30 mm (single-source) · part 30 mm — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Salsa Cycles — Lip-Lock seat collar (tier 1, read 2026-08-21)
View specifications
Thomson Elite seatpost 27.2 mm
Seatpost
fits · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 27.2 mm — match
- Seatpost shape: bike Round (single-source) · part Round — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Elite Seatpost (tier 1, read 2026-08-21)
View specifications
PNW Components Loam dropper post Gen 2, 30.9 mm × 150 mm
Dropper post
does not fit · confidence: single-source
Why? The facts we compared (3 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 30.9 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
- Dropper-post routing: bike nothing on file · part Internal (stealth) routing — not on file
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- PNW Components — Loam Dropper Post Gen 2 (tier 1, read 2026-08-21)
View specifications
PNW Components Loam dropper post Gen 2, 31.6 mm × 150 mm
Dropper post
does not fit · confidence: single-source
Why? The facts we compared (3 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 31.6 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
- Dropper-post routing: bike nothing on file · part Internal (stealth) routing — not on file
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- PNW Components — Loam Dropper Post Gen 2 (tier 1, read 2026-08-21)
View specifications
PNW Components Loam dropper post Gen 2, 34.9 mm × 150 mm
Dropper post
does not fit · confidence: single-source
Why? The facts we compared (3 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 34.9 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
- Dropper-post routing: bike nothing on file · part Internal (stealth) routing — not on file
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- PNW Components — Loam Dropper Post Gen 2 (tier 1, read 2026-08-21)
View specifications
Salsa Lip-Lock seat collar 35.0 mm
Seat clamp
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Seat clamp diameter: bike 30 mm (single-source) · part 35 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Salsa Cycles — Lip-Lock seat collar (tier 1, read 2026-08-21)
View specifications
Thomson Elite seatpost 25.4 mm
Seatpost
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 25.4 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Elite Seatpost (tier 1, read 2026-08-21)
View specifications
Thomson Elite seatpost 30.9 mm
Seatpost
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 30.9 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Elite Seatpost (tier 1, read 2026-08-21)
View specifications
Thomson Elite seatpost 31.6 mm
Seatpost
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Seatpost diameter: bike 27.2 mm (single-source) · part 31.6 mm — mismatch
- Seatpost shape: bike Round (single-source) · part Round — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Elite Seatpost (tier 1, read 2026-08-21)
View specifications
Thomson Seatpost collar 28.6 mm
Seat clamp
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Seat clamp diameter: bike 30 mm (single-source) · part 28.6 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Seatpost Collar (tier 1, read 2026-08-21)
View specifications
Thomson Seatpost collar 31.8 mm
Seat clamp
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Seat clamp diameter: bike 30 mm (single-source) · part 31.8 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Seatpost Collar (tier 1, read 2026-08-21)
View specifications
Thomson Seatpost collar 34.9 mm
Seat clamp
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Seat clamp diameter: bike 30 mm (single-source) · part 34.9 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- Thomson — Seatpost Collar (tier 1, read 2026-08-21)
View specifications

Sources

Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)

Slots in this region

Parts menu — 12 parts

Sources