Rear derailleur parts for the Tern GSD S10 (2025)

We have not verified this bike yet

10 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.

Tern GSD S10 (2025)

The rear derailleur of the Tern GSD S10 (2025): 2 slots — Derailleur hanger and Rear derailleur. 1 fit fact 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.

Shift actuation	Mechanical (cable) (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

Derailleur hanger
Rear derailleur

microSHIFT ADVENT medium-cage clutch rear derailleur, 9-speed
Rear derailleur
does not fit · confidence: single-source
Why? The facts we compared (2 dimensions compared)
- Rear speeds: bike 10 speeds (single-source) · part 9 speeds — mismatch
- Shift actuation: bike Mechanical (cable) (single-source) · part Mechanical (cable) — match
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- microSHIFT — ADVENT Medium Cage Clutch Rear Derailleur — RD-M6195M (tier 1, read 2026-08-21)
View specifications
SRAM GX Eagle rear derailleur, 12-speed
Rear derailleur
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 Mechanical (cable) — match
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — GX Eagle Rear Derailleur — RD-GX-1-B2 (tier 1, read 2026-08-21)
View specifications
SRAM Rival eTap AXS rear derailleur, 12-speed
Rear derailleur
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:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — Rival eTap AXS Rear Derailleur — RD-RIV-E-D1 (tier 1, read 2026-08-21)
View specifications

Sources

Tern Bicycles — GSD S10 — specifications (tier 1, read 2026-08-21)

Slots in this region

Parts menu — 3 parts

microSHIFT ADVENT medium-cage clutch rear derailleur, 9-speed

SRAM GX Eagle rear derailleur, 12-speed

SRAM Rival eTap AXS rear derailleur, 12-speed

Sources