Drivetrain 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 drivetrain of the Tern GSD S10 (2025): 5 slots — Bottom bracket, Chain guide, Front derailleur, Chain and Chain lube. 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.

"Drivetrain" here is the residual region: chain, front derailleur, bottom bracket, chain guide and chain lube. The cassette, rear derailleur and crankset each have their own region.

Chain standard	10-speed (6.0 mm) (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

Bottom bracket
Chain guide
Front derailleur
Chain
Chain lube

KMC X10 chain, 10-speed
Chain
fits · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 10-speed (6.0 mm) — match
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- KMC Chain — X10 — 10-speed bicycle chain (tier 1, read 2026-08-21)
View specifications
Muc-Off C3 Dry Weather Ceramic chain lube, 120 ml
Chain lube
fits · confidence: verified
Universal part: zero fit requirements, nothing to be wrong about.
Universal — no fit requirement
- Search AmazonSearch results · confirm model and availability.
- Muc-Off official siteModel page · confirm variant, availability and delivery.
OneUp Components Chain Guide ISCG05 V2
Chain guide
unknown · confidence: single-source
Why? The facts we compared (1 dimension compared)
- ISCG chain-guide tabs: bike nothing on file · part ISCG 05 — not on file
Sources:
- OneUp Components — Chain Guide - ISCG05 - V2 (tier 1, read 2026-08-21)
View specifications
KMC e12 e-bike chain, 12-speed
Chain
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 12-speed HG+ / Eagle (5.25 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- KMC Chain — e12 — 12-speed e-bike chain (tier 1, read 2026-08-21)
View specifications
KMC X11 chain, 11-speed
Chain
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 11-speed (5.5 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- KMC Chain — X11 — 11-speed bicycle chain (tier 1, read 2026-08-21)
View specifications
KMC X12 chain, 12-speed (Eagle / Campagnolo)
Chain
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 12-speed HG+ / Eagle (5.25 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- KMC Chain — X12 — 12-speed bicycle chain (tier 1, read 2026-08-21)
View specifications
KMC X9 chain, 9-speed
Chain
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 9-speed (6.6 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- KMC Chain — X9 — 9-speed bicycle chain (tier 1, read 2026-08-21)
View specifications
SRAM DUB BB30 bottom bracket
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part BB30 (42 mm bore, 68 mm) or BB30, 73 mm or BBright (Cervélo, 46 mm bore, 79 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — DUB BB30 Bottom Bracket — BB-DUB-BB30-A1 (tier 1, read 2026-08-21)
View specifications
SRAM DUB BSA bottom bracket, 68/73 mm
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part BSA / English threaded, 68 mm or BSA / English threaded, 73 mm — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — DUB BSA Bottom Bracket — BB-DUB-BSA-A1 (tier 1, read 2026-08-21)
View specifications
SRAM DUB BSA bottom bracket, 83 mm (DH)
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part BSA / English threaded, 83 mm — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — DUB BSA Bottom Bracket — BB-DUB-BSA-A1 (tier 1, read 2026-08-21)
View specifications
SRAM DUB PressFit bottom bracket, PF86.5/89.5/92
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part Press-fit BB86 (41 mm bore, 86.5 mm) or Press-fit BB92 (41 mm bore, 91.5 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — DUB PressFit Bottom Bracket — BB-DUB-PF-A1 (tier 1, read 2026-08-21)
View specifications
SRAM DUB PressFit30 bottom bracket
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part Press-fit PF30 (46 mm bore, 68 mm) or Press-fit PF30, 73 mm or BB386EVO (46 mm bore, 86.5 mm) or BBright (Cervélo, 46 mm bore, 79 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — DUB PressFit30 Bottom Bracket — BB-DUB-PF30-A1 (tier 1, read 2026-08-21)
View specifications
SRAM GX Eagle chain, 12-speed
Chain
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Chain standard: bike 10-speed (6.0 mm) (single-source) · part 12-speed HG+ / Eagle (5.25 mm) — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- SRAM — GX Eagle Chain — CN-EAGL-GX-A1 (tier 1, read 2026-08-21)
View specifications
Wheels Manufacturing Threaded Road ABEC-3 BB for 24 mm cranks (BSA 68)
Bottom bracket
does not fit · confidence: single-source
Why? The facts we compared (1 dimension compared)
- Bottom bracket shell: bike Mid-drive motor (no conventional shell) (single-source) · part BSA / English threaded, 68 mm — mismatch
Sources:
- Tern Bicycles — GSD S10 Gen 1 — specifications; model year not stated (tier 1, read 2026-09-30)
- Wheels Manufacturing — Threaded Road ABEC-3 BB for 24mm Cranks (Shimano) — BB-ROAD-13 (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 — 14 parts

Sources