Reviewed catalog recordAvailable

Hope Technology official website; owner-authorized licensed use.

Hope RX4+ SL Post Mount DOT 4-Piston Caliper

RX4+ SL · Post Mount, 4 pistons, DOT 4 / 5.1 hydraulic-fluid version

Category: Brake caliper
Model year: 2026
Market: Global
Variant key: rx4-sl-post-mount-dot

Exact variant

Published identity and context

Weight

Unknown

No supported weight context is published for this variant.

SKU

Unknown

Manufacturer part number

Unknown

Catalog revision

1

Specification schema 1

Materials

Material information is unknown.

Published colors

Color information is unknown.

Also known as

No public aliases are recorded.

Schema version 1

Structured specifications

Brake type: Hydraulic disc; Hope identifies this component as a hydraulic disc brake caliper. Source: https://www.hopetech.com/products/brakes/gravel-cx/rx4-sl-pm/
Piston count

4

Hope specifies a 4-piston caliper. Source: https://www.hopetech.com/products/brakes/gravel-cx/rx4-sl-pm/

Material

CNC-machined 2014 T6 aluminum

Hope specifies CNC-machined 2014 T6 aluminum construction. Source: https://www.hopetech.com/products/brakes/gravel-cx/rx4-sl-pm/

Attributed statements

Compatibility context

These are source-backed manufacturer statements for this exact variant, not fitment advice or a compatibility guarantee.

Mount standard: Post mount; Hope lists a Post Mount version. Source: https://www.hopetech.com/products/brakes/gravel-cx/rx4-sl-pm/
Compatible rotor sizes: 140, 160, 180 mm; Hope lists compatibility with 140 mm, 160 mm, and 180 mm rotors. Source: https://www.hopetech.com/products/brakes/gravel-cx/rx4-sl-pm/

Canonical stock records

Bicycles listed with this component

These links reflect reviewed stock specifications. They do not guarantee compatibility with another size, market, year, or personal build.

No reviewed bicycle stock specification currently links this exact component.

Provenance

Evidence and freshness

Sources current

The listed evidence is available and has not been marked stale.

Identity
Hope Technology (opens in a new tab)
Fresh
Checked Oct 13, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Hope Technology Hope RX4+ SL Post Mount DOT 4-Piston Caliper.
Classification Availability
Hope Technology (opens in a new tab)
Fresh
Checked Oct 13, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Hope Technology Hope RX4+ SL Post Mount DOT 4-Piston Caliper.
Frame Fork Material
Hope Technology (opens in a new tab)
Fresh
Checked Oct 13, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Hope Technology Hope RX4+ SL Post Mount DOT 4-Piston Caliper.
Component Attributes
Hope Technology (opens in a new tab)
Fresh
Checked Oct 13, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Hope Technology Hope RX4+ SL Post Mount DOT 4-Piston Caliper.

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Exact-variant experience

Ratings and written reviews

Reviews here apply only to Hope Technology Hope RX4+ SL Post Mount DOT 4-Piston Caliper · Post Mount, 4 pistons, DOT 4 / 5.1 hydraulic-fluid version. They are separate from comments on cyclist journeys and user-owned bicycles.

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