Description
Thorowgood T4 Cob GP MGX 17.5″ Adjustable Synthetic Saddle – Black
Finding a lightweight, low-maintenance saddle for a wide or low-withered horse can be a challenge. The Thorowgood T4 Cob GP MGX is engineered specifically for broader, flatter-backed builds. Combining a low-wither tree, slim wool-flocked panels, and durable synthetic materials, it offers a secure, close-contact feel without the heavy weight of traditional leather—making it an ideal choice for everyday schooling, trail rides, and riding club events.
At Best Horse Saddle Shop, our workshop team hand-inspects every pre-owned saddle before listing. This 17.5″ T4 Cob GP is fully structurally sound, completely functional, and ready to offer everyday reliability at a practical price point.
Quick Specs
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Brand: Thorowgood
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Model: T4 Cob GP MGX
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Seat Size: 17.5″
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Color: Black
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Material: Lightweight Synthetic
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Tree Type: SIMA Tree (S-Bar System)
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Wither Profile: Low Wither / Flat Back Profile
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Adjustability: Changeable Gullet System (Narrow-Medium to XX-Wide)
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Panels: Wool Flocked (Low-Profile Panels)
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Discipline: General Purpose (GP) / All-Rounder
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Flap Type: Dual Flap (14.75″ Flap Length)
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Serial Number: 98619
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Saddle ID: S12665
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Condition: Pre-Owned (Grade 4 — Good Used Condition)
Designed for Flatter Backs & Broader Builds
The Thorowgood T4 Cob GP is built around broader equine anatomy to eliminate rolling, pinching, or sitting “perched” high over the spine:
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Flatter Tree Profile: Designed specifically to follow flat, level toplines and low-wither profiles without twisting or slipping.
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Wool-Flocked Panels: Natural wool flocking allows your local saddle fitter to make precise balance tweaks as your horse’s topline evolves through training or seasonal changes.
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S-Bar Changeable Gullet: Swapping gullet bars from Narrow-Medium up to XX-Wide takes minutes, making seasonal weight shifts simple to manage.
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Lightweight & Easy-Care: The synthetic construction makes cleaning effortless—simply wipe down with a damp cloth after rides—while keeping the total weight easy on your horse’s back.
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Custom Leg & Girthing Setup: Features movable Velcro knee blocks and variable girthing options to stabilize the saddle on rounder barrels.
Condition Report
Grade 4 — Good Used Condition
This saddle has been thoroughly inspected and is 100% structurally sound with expected cosmetic signs of previous use:
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Seat & Pommel: Normal cosmetic surface wear on the seat and light scuffing around the pommel.
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Flaps: Moderate, typical wear on both flaps from stirrup leathers.
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Structure: The SIMA S-Bar tree, girth points, stitching, and wool-flocked panels are fully sound and in good working order.
We encourage you to review all high-resolution photos for an exact look at its cosmetic condition.
Delivery & Trial Terms
We supply saddles to riders across the UK (England, Scotland, Wales, and Northern Ireland) with tracked courier dispatch.
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UK Trial Period: Eligible for our UK mainland trial option so your qualified saddle fitter can assess the fit on your horse before you fully commit.
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International Shipping: Tracked delivery options are also available worldwide. We recommend checking measurements and consulting a local fitter prior to ordering.
Warranty & Peace of Mind
Best Horse Saddle Shop Pre-Owned Warranty
Every used saddle sold by Best Horse Saddle Shop includes our Pre-Owned Soundness Warranty alongside our comprehensive workshop inspection report. We verify every tree and stress point so you can hit the trail with complete peace of mind.
(Note: Coverage applies to structural soundness under normal care and excludes accidental damage, neglect, or third-party alterations made after purchase.)
Need Sizing Help or Have Questions?
Want to check if the 17.5″ seat or low-wither profile will suit your horse before ordering? We’re here to help!
Send us photos of your horse standing flat or message our team directly—we’ll happily review your setup and guide you through.









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