Reviewed catalog recordAvailable

Shimano; owner-authorized use.

ULTEGRA Di2 RD-R8150 Rear Derailleur

ULTEGRA Di2 RD-R8150 · 12-speed, single cage length

Category: Rear derailleur
Model year: Year not published
Market: Global
Variant key: road-12-speed-single-cage

Exact variant

Published identity and context

Weight

Unknown

No supported weight context is published for this variant.

SKU

Unknown

Manufacturer part number

RD-R8150

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

Material: Aluminum bracket and bracket body; GFRP plate body and inner link; aluminum outer link and plates; stainless-steel B-axle; Manufacturer-listed rear derailleur construction. Source: https://productinfo.shimano.com/ja/product/RD-R8150

Claimed weight

262 g

Manufacturer-listed average weight. Source: https://productinfo.shimano.com/ja/product/RD-R8150

Attributed statements

Compatibility context

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

No compatibility context are published for this exact variant.

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
Shimano (opens in a new tab)
Fresh
Checked Oct 12, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Shimano ULTEGRA Di2 RD-R8150 Rear Derailleur.
Classification Availability
Shimano (opens in a new tab)
Fresh
Checked Oct 12, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Shimano ULTEGRA Di2 RD-R8150 Rear Derailleur.
Frame Fork Material
Shimano (opens in a new tab)
Fresh
Checked Oct 12, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Shimano ULTEGRA Di2 RD-R8150 Rear Derailleur.
Weight
Shimano (opens in a new tab)
Fresh
Checked Oct 12, 2026
Review
Accepted
Confidence
Verified
Market
Global
Source type
Product Page
Evidence note: Owner-reviewed official evidence for Shimano ULTEGRA Di2 RD-R8150 Rear Derailleur.

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Builds, stories, and experience

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Journey entries

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Exact-variant experience

Ratings and written reviews

Reviews here apply only to Shimano ULTEGRA Di2 RD-R8150 Rear Derailleur · 12-speed, single cage length. They are separate from comments on cyclist journeys and user-owned bicycles.

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