Front brake 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 front brake of the Surly Disc Trucker 700c (2024): 3 slots — Brake caliper, Brake rotor and Brake pads. 4 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.

Brake mount, front	Flat mount (single-source)
Rotor interface (hubs)	6-bolt (ISO) (single-source)
Maximum rotor, front	180 mm (single-source)
Brake actuation	Mechanical (cable) disc (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

Brake caliper
Brake rotor
Brake pads

Shimano K-Type resin disc brake pads
Brake pads
unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (1 dimension compared)
- Brake pad shape (fitted calipers) (safety-critical): bike nothing on file · part Shimano K-type (2019+ 2-piston XTR/XT/SLX/Deore: K02S/K03S/K04Ti/K05S) or Shimano L-type (flat-mount road/gravel 2-piston: L02A/L03A/L04C/L05A) — not on file
Sources:
- MEC — Shimano K-Type Resin Disc Brake Pads — MEC listing (tier 2, read 2026-08-21)
View specifications
Shimano L-Type metallic disc brake pads (finned)
Brake pads
unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (1 dimension compared)
- Brake pad shape (fitted calipers) (safety-critical): bike nothing on file · part Shimano L-type (flat-mount road/gravel 2-piston: L02A/L03A/L04C/L05A) or Shimano K-type (2019+ 2-piston XTR/XT/SLX/Deore: K02S/K03S/K04Ti/K05S) — not on file
Sources:
- MEC — Shimano L-Type Metallic Disc Brake Pads — MEC listing (tier 2, read 2026-08-21)
View specifications
Shimano M70T4 V-brake pads
Brake pads
unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (1 dimension compared)
- Brake pad shape (fitted calipers) (safety-critical): bike nothing on file · part Rim pads: V-brake / linear-pull threaded stud (M70T4 / S70C, 70 mm) — not on file
Sources:
- MEC — Shimano M70T4 V-Brake Rim Brake Pads — MEC listing (tier 2, read 2026-08-21)
View specifications
SRAM CenterLine X rotor 160 mm, 6-bolt
Brake rotor
unknown · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part 6-bolt (ISO) — match
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 160 mm — match
Downgraded to "unknown": every fact matches, but a safety-critical one is confirmed by a single source only — we say "fits" on a safety dimension only with two independent sources
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine X Rotor — RT-CLN-X-A2 (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine X rotor 180 mm, 6-bolt
Brake rotor
unknown · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part 6-bolt (ISO) — match
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 180 mm — match
Downgraded to "unknown": every fact matches, but a safety-critical one is confirmed by a single source only — we say "fits" on a safety dimension only with two independent sources
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine X Rotor — RT-CLN-X-A2 (tier 1, read 2026-08-21)
View specifications
TRP Spyre mechanical disc caliper, post mount
Brake caliper
unknown · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Brake mount, front (safety-critical): bike Flat mount (single-source) · part Post mount (74 mm) — match with an adapter (adapter flat_mount → post_mount, extra_part)
- Brake actuation (safety-critical): bike Mechanical (cable) disc (single-source) · part Mechanical (cable) disc — match
Downgraded to "unknown": every fact matches, but a safety-critical one is confirmed by a single source only — we say "fits" on a safety dimension only with two independent sources
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- TRP Cycling — Spyre — mechanical disc brake caliper (tier 1, read 2026-08-21)
- TRP Cycling — Flat Mount to Post Mount Adapter (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine rotor 180 mm, Center Lock
Brake rotor
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part Center Lock — mismatch
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 180 mm — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine Rotor — RT-CLN-A2 (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine rotor 200 mm, 6-bolt
Brake rotor
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part 6-bolt (ISO) — match
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 200 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine Rotor — RT-CLN-A2 (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine rotor 220 mm, 6-bolt
Brake rotor
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part 6-bolt (ISO) — match
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 220 mm — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine Rotor — RT-CLN-A2 (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine X rotor 140 mm, Center Lock
Brake rotor
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part Center Lock — mismatch
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 140 mm — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine X Rotor — RT-CLN-X-A2 (tier 1, read 2026-08-21)
View specifications
SRAM CenterLine X rotor 160 mm, Center Lock
Brake rotor
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rotor interface (hubs) (safety-critical): bike 6-bolt (ISO) (single-source) · part Center Lock — mismatch
- Maximum rotor, front (safety-critical): bike 180 mm (single-source) · part ≥ 160 mm — match
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — CenterLine X Rotor — RT-CLN-X-A2 (tier 1, read 2026-08-21)
View specifications
SRAM G2 RS disc brake (caliper + lever)
Brake caliper
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Brake mount, front (safety-critical): bike Flat mount (single-source) · part Post mount (74 mm) — match with an adapter (adapter flat_mount → post_mount, extra_part)
- Brake actuation (safety-critical): bike Mechanical (cable) disc (single-source) · part Hydraulic disc — mismatch
Sources:
- Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21)
- SRAM — G2 RS disc brake — DB-G2-RS-A2 (service specifications) (tier 1, read 2026-08-21)
- TRP Cycling — Flat Mount to Post Mount Adapter (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