Description
16.5″ GFS Monarch Cob GP S650 Black Adjustable Saddle
Looking for a comfortable 16.5″ GP saddle for a wider horse or cob? This pre-owned GFS Monarch Cob GP S650 is a practical, versatile option for everyday riding.
The Monarch Cob GP S650 was designed with wider horses in mind, with a generous channel, straighter panels and an adjustable gullet system that can be changed as your horse’s shape develops. It has a comfortable seat for the rider, supportive knee rolls and plenty of adjustment options to help create a more secure, balanced position.
Whether you’re shopping from the UK, USA, Europe or Australia, this is the kind of saddle that can work well for riders who want something practical for hacking, schooling and general riding.
Saddle Specifications
| Details | Information |
|---|---|
| Brand | GFS Monarch |
| Model | Cob GP S650 |
| Seat Size | 16.5″ |
| Colour | Black |
| Discipline | General Purpose |
| Material | Leather |
| Tree | Polymer Synthetic – X Change |
| Gullet Currently Fitted | W |
| Adjustable Range | Narrow – 4XW |
| Panel Type | Flocked |
| Flap Type | Dual Flap |
| Condition | Used |
| Condition Grade | Grade 4 |
| Serial Number | 24010071 |
| Flap Length | 15.5″ |
Designed for Wider Horses and Cobs
The first thing that stands out about the GFS Monarch Cob GP S650 is that it is made with wider horses in mind.
The panels have a straighter shape, which gives the saddle room to accommodate a broader shoulder. The central channel also provides clearance along the spine, making this model particularly appealing for horses with a wider build.
It is often a good option for cob types and horses with a lower wither profile, although the final fit will always depend on the individual horse.
If your horse has changed shape over time, the adjustable design can also be useful.
Adjustable from Narrow to 4XW
One of the most useful features of this saddle is the X Change gullet system.
The width can be adjusted from Narrow through to 4XW by changing the gullet bar. This gives you more flexibility than a fixed-tree saddle, particularly if your horse gains or loses condition or develops a different topline.
The saddle also has several girthing options, allowing the girthing arrangement to be adjusted to suit the horse.
Of course, changing the gullet does not replace professional saddle fitting. A saddle fitter should still check the complete fit of the saddle on your horse.
Comfortable for Everyday Riding
This is a General Purpose saddle, so it isn’t limited to one type of riding.
The 16.5″ seat gives the rider a relatively compact and secure feel, while the padded knee roll provides additional support without making the rider feel overly restricted.
The adjustable Velcro knee and calf blocks can also be positioned to suit the rider’s leg.
For many riders, this makes the Monarch Cob GP S650 a useful everyday saddle for:
- Hacking
- Schooling
- Riding club activities
- General flatwork
- Leisure riding
- Occasional jumping
What We Like About This Saddle
The biggest attraction is its combination of adjustability and a wider-horse design.
The saddle isn’t trying to be overly complicated. It simply gives the rider useful features that can make everyday riding easier.
The adjustable gullet gives some room for changes in the horse’s shape, while the wider channel and straighter panels make it a model worth considering for a broader cob or horse.
The flocked panels are another useful feature because a qualified saddle fitter can make appropriate minor adjustments where necessary.
Condition: Grade 4
This is a Grade 4 used saddle, so buyers should expect normal signs of previous use.
The saddle is described as being in good used condition, with:
- Moderate wear to the left flap
- Moderate wear to the right flap
- Wear around the front trim
- White paint visible in the gullet channel
- General signs of use and discolouration
These cosmetic marks are reflected in the saddle’s condition grade and should be considered when comparing it with newer or higher-grade used saddles.
We recommend looking through all product photographs carefully before ordering so you can judge the cosmetic condition for yourself.
A Good Option for a 16.5″ Rider
The 16.5″ seat can be a particularly useful size for a smaller adult or junior rider who finds a larger GP saddle too roomy.
The padded knee roll and adjustable blocks allow the rider to personalise the feel of the saddle rather than simply accepting a fixed knee position.
As always, rider size and position should be considered alongside the horse’s requirements when choosing a saddle.
Buying from the UK – USA, Europe & Australia
For customers in the USA, Europe and Australia, UK-based second-hand saddles can provide access to a much wider selection of English saddlery.
If you’re searching locally and struggling to find the right combination of seat size, tree shape, colour and adjustability, importing a suitable used saddle from the UK may be worth considering.
International buyers should remember that shipping times, customs procedures, import taxes and local charges can vary depending on the destination.
The saddle should also be assessed by a qualified saddle fitter before regular use.
International Saddle Buyers
We regularly see riders looking for quality used saddles from outside the UK, particularly in countries with established English riding communities such as the USA, Australia and across Europe.
For international customers, please note that the 5-day trial mentioned below applies to UK mainland orders only. International orders are not currently eligible for the UK trial service.
If you are buying from overseas, it is a good idea to have your fitter’s measurements available before ordering and compare them carefully with the saddle’s specifications.
5-Day UK Mainland Trial
For eligible UK mainland customers, the saddle can be purchased with a 5-day trial.
The trial begins from the day the saddle is delivered. If you have a saddle-fitting appointment booked, it is recommended that you arrange delivery a couple of working days before the appointment. This gives you some breathing room if the courier experiences an unexpected delay.
Please note: the UK mainland trial is not currently available for international customers.
Saddle Fitting Matters
Even though the GFS Monarch Cob GP S650 has a generous adjustable range, it’s important not to assume that every 4XW horse will fit the saddle.
A saddle needs to work with the horse’s complete back shape, not just its width.
Your saddle fitter can assess things such as:
- Wither clearance
- Spinal clearance
- Panel contact
- Shoulder freedom
- Tree shape
- Saddle balance
- Girth position
- Rider position
A professional fitting is therefore strongly recommended before using the saddle regularly.
6-Month Second-Hand Warranty
This saddle is supplied with a 6-month soundness warranty for second-hand saddles, subject to the applicable terms.
The warranty does not cover issues caused by accidents, fire, theft, poor care or unauthorised alterations.
If the saddle needs adjusting, always use a qualified saddle fitter or appropriate professional rather than attempting structural alterations yourself.
What’s Included?
Your purchase includes a number of useful customer benefits, including:
- Saddle inspection report
- 6-month second-hand soundness warranty
- Fast delivery options
- Overseas tracking
- Customer support
- Option to add accessories
- UK mainland trial where applicable
- Buy-back option subject to the relevant terms
The guaranteed buy-back scheme is subject to the saddle’s condition and eligibility requirements and is available to UK mainland customers.
Looking After Your GFS Leather Saddle
Good leather care doesn’t have to be complicated.
After riding, remove dust, dirt and sweat with a soft, slightly damp cloth or sponge. When the saddle needs a deeper clean, use a quality product specifically made for equestrian leather.
Avoid household leather cleaners and harsh chemicals. GFS recommends using appropriate natural leather-care products rather than products intended for car interiors or household furniture.
Pay particular attention to areas that receive more friction, such as the billet straps, girth buckle areas and the parts of the flaps that come into contact with your stirrup leathers.
A little regular care is much better than waiting until the leather becomes dry.
Natural Leather Characteristics
Because this saddle is made from genuine leather, small variations in colour, grain, marks and natural scars can occur. These are normal characteristics of natural leather.
Some darker leather saddles may also transfer a small amount of colour onto clothing, particularly when the leather is damp or has recently been treated with conditioner.
Allow the saddle to dry properly after cleaning and avoid wearing clothing that you don’t want to risk staining.
Why Consider the GFS Monarch Cob GP S650?
If you have a wider horse and want a 16.5″ adjustable GP saddle, the GFS Monarch Cob GP S650 offers a sensible combination of comfort, adjustability and everyday versatility.
The Narrow-to-4XW gullet range, wider-horse panel design, padded knee support and practical GP layout make it a useful choice for riders who want one saddle for a variety of activities.
It is particularly worth considering if you have a cob or broader horse and have struggled to find a saddle that provides enough room without sacrificing rider comfort.
Saddle Summary
16.5″ GFS Monarch Cob GP S650 Black Adjustable
- Seat: 16.5″
- Colour: Black
- Condition: Used – Grade 4
- Current Gullet: W
- Adjustment: Narrow–4XW
- Material: Leather
- Discipline: General Purpose
- Best suited to: Wider/cob-type horses
- Saddle ID: S12785
For UK, USA, European and Australian buyers: please check all measurements, photographs and fitting requirements carefully before purchasing. A qualified saddle fitter should always assess the saddle on your individual horse before regular use.










Reviews
There are no reviews yet.