Does this part fit my bike?

Find your bike under "Fits these bikes" below, or open your bike's "Rear derailleur" region page. The verdict there is computed from this part's requirements against the bike's cited facts — with its confidence and sources.

What does "does not fit" mean here?

That a fact on file for the bike contradicts a requirement of this part — a confident no, with both values shown.

SRAM Rival eTap AXS rear derailleur, 12-speed

SRAM rear derailleur. Needs from your bike: Rear speeds and Shift actuation. Provides: Rear derailleur max cog.

The SRAM Rival eTap AXS rear derailleur, 12-speed is a rear derailleur (component). It requires 2 things of a bike — Rear speeds and Shift actuation — read from SRAM. It provides Rear derailleur max cog to the parts that mount on it. On every bike page its verdict is computed from those requirements against the bike's cited facts: when a fact is missing the answer is "unknown", never a guess.

Requires — Rear speeds	12 speeds
Requires — Shift actuation	SRAM AXS (eTap)
Provides — Rear derailleur max cog	36 t

Does this part fit my bike?: Find your bike under "Fits these bikes" below, or open your bike's "Rear derailleur" region page. The verdict there is computed from this part's requirements against the bike's cited facts — with its confidence and sources.
What does "does not fit" mean here?: That a fact on file for the bike contradicts a requirement of this part — a confident no, with both values shown.

Standards

12 speeds
SRAM AXS (eTap)
36 t

Needs from your bike: Rear speeds: 12 speeds · Shift actuation: SRAM AXS (eTap)

Provides: Rear derailleur max cog: 36 t

Rear derailleur

Find this part

Choose the right variant and check the fit for your bike.

Fits these bikes

Giant Defy Advanced 2 (2025)	unknown · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike nothing on file · part SRAM AXS (eTap) — not on file Sources: Giant Bicycles — Defy Advanced 2 (2025) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Propel Advanced 2 (2027)	unknown · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike nothing on file · part SRAM AXS (eTap) — not on file Sources: Giant Bicycles — Propel Advanced 2 (2027) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Brompton C Line 12-speed (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike nothing on file · part 12 speeds — not on file Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21) Brompton Bicycle — C Line — 12-speed — technical specifications (tier 1, read 2026-08-21)
Canyon Grail CF SL 7 (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Canyon — Grail CF SL 7 — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Canyon Ultimate CF 7 (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Canyon — Ultimate CF 7 — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Escape 3 (2024)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 7 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Escape 3 (2024) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Fathom 29 2 (2022)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 10 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Fathom 29 2 (2022) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Glory Advanced (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 7 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike nothing on file · part SRAM AXS (eTap) — not on file Sources: Giant Bicycles — Glory Advanced (2025) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Reign 29 2 (2021)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Reign 29 2 (2021) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Revolt Advanced 2 (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Revolt Advanced 2 (2025) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Roam 2 Disc (2021)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 9 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Roam 2 Disc (2021) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Talon 2 (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 9 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Talon 2 (2025) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Talon E+ (2026)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 9 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Talon E+ (2026) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant TCX Advanced Pro 2 (2023)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 11 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike nothing on file · part SRAM AXS (eTap) — not on file Sources: Giant Bicycles — TCX Advanced Pro 2 (2023) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant Trance X 29 2 (2022)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 12 speeds (single-source) · part 12 speeds — match Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — Trance X 29 2 (2022) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Giant XTC Jr 24 (2015)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 7 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Giant Bicycles — XTC Jr 24 (2015) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Kona Sutra (2025)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 10 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Kona Bikes — Sutra (2025) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Liv Flourish 2 (2017)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 8 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Liv Cycling — Flourish 2 (2017) — specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
State Bicycle Co. Core-Line (2024)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 1 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Single-speed / fixed (no shifting) (single-source) · part SRAM AXS (eTap) — mismatch Sources: State Bicycle Co. — Core-Line — Wulf — product page specifications (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
Surly Disc Trucker 700c (2024)	does not fit · confidence: single-source Why? The facts we compared (2 dimensions compared) Rear speeds: bike 9 speeds (single-source) · part 12 speeds — mismatch Shift actuation: bike Mechanical (cable) (single-source) · part SRAM AXS (eTap) — mismatch Sources: Surly Bikes — Disc Trucker 700c — Hi-Viz Black — specifications and frame details (tier 1, read 2026-08-21) SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)

See all 23 bikes

Sources

The spec sheets we read. Every fact above cites one of them.

SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)