The bit operates like a communication channel between horse & rider, and with it being one of the most sensitive parts of the horse’s body, it is important to use a correct fitting bit for optimal comfort.

There are two general factors to consider when choosing the correct size bit for your horse:

1) Bit Width

2) Bit Thickness

Additionally, the fit may vary between a loose-ring style versus a fixed cheek piece like a D-ring

For a Loose-Ring Bit -> There should be no more than a 1/2cm between the edge of the mouth and bit ring, on both the left and right side. Be sure that the ring is able to move freely without pinching the mouth.

For a Fixed Cheek Piece (ex. Eggbutt, Full Cheek, D-Ring, etc) -> due to the design of these bits, they should sit closer to the edge of the mouth than a loose-ring would.

For a Double Bridle Set-up -> A Double-Bridle typically consists of a Weymouth and Bradoon bit. The Bradoon should be the same size that you would use for a traditional snaffle bit, as it will sit in the same area in the horse’s mouth. The Weymouth, on the other hand, is designed to sit lower in the mouth, thus we recommend going up to 1cm smaller than the Bradoon to accommodate the anatomy of the jaw, as well as provide the most comfortable/accurate fit.

Herm Sprenger produces a variety of bit widths to fit a broad range of mouth anatomies. The best way to choose the correct thickness for your own horse is by performing the “Two-Finger Test”. To perform this test, put your index finger and middle finger together and insert it in your horse’s mouth where the bit would traditionally lie. If you feel a steady pressure from the upper and lower jaw, your horse will most likely require a thinner mouth piece (typically 14-16mm). If you feel little to know pressure on your fingers, your horse will be able to comfortably wear a bit with a thickness between 16-18mm.

Please note, using a bit that is too thick for your horse’s mouth can cause excessive pressure on the palate, which can lead to bruising and injury. Some common signs that a bit may be too thick are head tossing, mouth gaping, and jerking on the reins.

Ideally, we suggest cleaning your bit after every use by thoroughly rinsing it in clean water. This will help prevent discoloration from oxidation, as well as prevent food remains or saliva from getting caked onto the surface of your bit.

If your bit is made from either Sensogan or Aurigan, they contain copper which due to its natural oxidation process, may tarnish and lose its shine after extended use. Our Diamond Paste is a great way to revitalize these bits in a non-toxic way.

Have you had eggbutt or D-ring bits start to squeak in the past? We recommend thoroughly clean, rinse, and oil these moving parts with cooking oil every so often.

Our Duo or rubber-based bits must be cleaned after each ride as well, and we suggest inspecting your bit for signs of wear and tear in order to prevent any discomfort to your horse that sharp edges or pieces can cause.

Select Herm Sprenger dealers do offer a special trial service to customers. Each Test Center has a selection of bits available to take on trial to see if it may work for your horse. Please contact your local Herm Sprenger dealer for more information on whether or not they offer trial bits. 

KK ULTRA bits are the pioneers of modern bits because they have been developed on the basisof scientific research.

They achieve their unique, precise effect through thespecial 45° angle of the middle link. When used correctly,the horse’s confidence in the rider’s hand is enhanced,which is why these bits are used successfully worldwide
in all disciplines and across all training levels – a true all-round talent! Compared to conventional bits, the middle link has also been shortened. This anatomical adaptation noticeably optimizes the effect compared to conventional double jointed bits.

When the reins are taken up, the middle link – also known as the “lozenge” because of its striking shape –gently rolls over the central part of the horse’s tongue, stimulating its sense of touch. The connecting rings to the
middle piece roll softly over the tongue without exerting pressure.

Scientific Research

The development of the KK ULTRA bits is based on the results of a measurement of mouth cavities of horses initiated by SPRENGER, carried out by the University of Veterinary Medicine in Hanover. This investigation
resulted in groundbreaking knowledge about the space conditions and the position of bits in the horse‘s mouth. In short, the sensitive horse mouth offers little space for a bit. This space has to be used by anatomical adjustments in such a way that a comfortable and effective rein aid is possible for the rider.

Spurs made of stainless steel and German Silver can also be refurbished. Also lost rowels can normally be replaced by Sprenger provided that the neck is intact.

The rubber of the System 4 and Bow Balance stirrups can be repaired if the stirrup is – apart from that – in a completely harmless and usable condition. This repair may only be done by Herm. Sprenger and has to be handled through your retailer.

Bits made of Sensogan and Aurigan can be refurbished by grinding and polishing. Also sharp-edged ring holes that can occur after years of use can be repaired by grinding. A prerequisite is, however, that the bit is – apart from that – in a completely harmless and fully usable condition.

Deposits on the mouthpiece

Deposits on the mouthpiece are normally caused by saliva or food remains. You can prevent the formation of remains by every-day cleaning of the bit with water and regular polishing with the Sprenger “Diamond Paste” which should be available at your local dealer.

Discolorations of the mouthpiece

Since Sensogan and Aurigan have a high copper content the material does tarnish over time. The tarnishing results from the material’s natural oxidation properties that are needed to encourage the production of saliva. Regular polishing of the bit with Sprenger “Diamond Paste”, available at your local dealer, helps to remove these discolorations.

The Sprenger caring instructions for stirrups are similar to those for bits and spurs. You should regularly remove all kinds of dirt by cleaning them with water and dry them afterwards. When needed also use the Diamond Paste to bring the shine back to the metal.

A soft cloth and when necessary a bit of water are perfectly good for cleaning our anthrazite and bronze coloured stirrups and spurs.

The stirrup pads can easily be cleaned with a grooming brush after riding.

Jointed stirrups

Sprenger’s jointed stirrups have a Special developed “System 4” joint which is coated with a protective rubber layer. The rubber coat stabilizes the moveable part of the stirrup and protects the joint from dirt, sand and humidity.

Please also regularly check the condition of the stirrups and the rubber coating. Especially after a fall of rider and/or horse or after hitting the wall or the jump-stand with the stirrup, you should check if the joint is still working properly. If you find any deformations or if the mobility of the joint is limited, for safety reasons please do not use the stirrup any further.

Sprenger produces high quality products with an above average durability. However, it is necessary to regularly check your products for proper condition and function. You should replace a product as soon as it presents a safety or health risk for horse or rider. In any case of doubt please contact your local dealer who will be happy to give you advice.

Since stirrups have to withstand high pressure during riding, please ensure that your stirrups are in perfect condition before every use. You should regularly check your stirrups for cracks or deformations.

Especially after a fall or when a stirrup accidently hit the wall or jump-wing while riding, you should carefully inspect the stirrup for damages. Do not use damaged or deformed stirrups any longer! In case of doubt it is safer to replace the stirrups or at least ask a proven expert for advice.

The premium-quality Sprenger Ultra fit and Ultra fit Extra Grip Spurs are made of solid and break-proof stainless steel. To Keep them clean you just have to rinse them thoroughly with water and dry them afterwards.

If you use rowel spurs you should be aware that the rowel must be able to rotate freely. Please do not use spurs with tight rowels as they might cause injuries on your horse. In order to keep the rowel free you should regularly remove all kinds of dirt, for example remains of sand and sweat or hairs, especially during the change of coat.

German Silver spurs are also made of a solid and break-proof stainless metal. They are extremely long lasting but might lose their shiny appearance after some time of use. By polishing the spurs with the Sprenger Diamond Paste you can bring the sparkle back on the surface and make them look brand new.

The small triangle is an important feature, as you will want to ensure that this triangle is always facing outward from your horse's jaw (the point facing the opening of the mouth). As long as your bit is set up this way, you can be sure you are using it correctly.