Sprenger Horse FAQs

Measure the individual horse and check the fit of the exact bit design. Sprenger provides a printable bit measure. Horse breed or body size alone cannot determine mouth size. See our bit size guide and fitting steps.

Sprenger’s general guidance is around 3–5 mm between the ring hole and each mouth corner, with the rings able to move freely and not pinch. Fixed cheek pieces sit closer to the corners. Confirm the fit of the specific model with a qualified fitter if you are uncertain.

No. Mouth anatomy varies between individual horses, so breed, height and body size are not reliable substitutes for measuring. Check the width on the exact model.

No. Width runs from side to side across the mouthpiece; thickness is the diameter of the mouthpiece. A horse can need a different width and thickness combination.

Available space in the mouth and the design both matter. Sprenger describes a two-finger check, but it should be done carefully by someone who understands the horse’s mouth. Ask an equine dental professional or experienced bit fitter for an individual assessment.

There is no simple strength ranking that fits every horse and rider. Joint design changes where contact is distributed, while fit, anatomy and the rider’s hands also affect the result. Ask a qualified professional about a specific horse and model.

They can sit differently. Sprenger’s guidance says fixed side pieces such as eggbutt and D-ring designs should lie close to the mouth corners without pinching; some models may need a different size from a loose-ring equivalent. Use the exact model’s instructions and check the fit.

Behaviour can flag discomfort or another problem, but it cannot identify the cause by itself. Mouth opening, head tossing or resistance can have dental, health, training, tack or fit causes. Seek professional assessment rather than selecting a bit from one symptom.

It is a method Sprenger describes for estimating space between the upper and lower bars where the bit sits. Do not force fingers into a reluctant horse’s mouth. If you have not been shown how to do it safely, ask an equine dental professional or bit fitter.

Sprenger explains that copper-containing alloys can darken through natural oxidation. Its FAQ recommends cleaning after use and describes a suitable metal polish for deposits or discolouration. Follow the care instructions for the exact material and product.

Sprenger recommends rinsing metal bits thoroughly with water after use to remove saliva or food residue. Dry it and inspect the mouthpiece and ring holes. Check the product’s own care tab before using a polish or other cleaner.

Check it regularly for bends, sharp edges and wear. Sprenger advises replacing a bit if it presents a safety risk or is clearly worn. Have uncertain damage assessed by a specialist before use.

Sprenger publishes a general guide of 110 mm for EU shoe sizes up to 38, 120 mm for 39–44, and 130 mm for 45+. Some KE listings have a 122 mm tread; check the exact product details. See the stirrup guide.

Compare the neck measurement and shape on the exact product with your boot, leg position and intended aid. Neck length alone does not describe how strong a spur will feel. See our spur guide and ask a qualified instructor if you are unsure.

Start with an equine dental professional or an experienced bit fitter. Sprenger’s own fitting page currently directs customers to email while its web form is unavailable. KE can help with product information, but we cannot assess a horse’s mouth remotely.