Permitted bits may be manufactured from:
- Rubber, nylon or other synthetic materials
- Mix of metals in the mouthpiece
- Bits with a loose ring, eggbut, D-Ring, upper cheek, full check, hanging cheek and Fulmer cheek are allowed.
- Bits with a single joint, double joint, barrel joint, ball joint, double ball joint, central piece with a roller or unjointed mouthpiece may be used in a snaffle bridle.
- Bits with a central link are permitted but they must not have the action of a tongue plate.
- Port deviation measurements – they must have a minimum of 30mm width and a maximum height of 30mm
- Bits must be used in their manufactured condition without any addition or adaptation to any part.
Bit guards, mouthpieces with a diameter less than 10mm or no bits/bitless bridles are not permitted.
All permitted snaffle bits may be used in a double bridle with the exception of any mouthpiece with a half/full cheeks or lock up bits (including double and single jointed) as these bits have the effect of a Mullen mouth. Rigid bits coated in plastic are permitted in a double bridle. However, flexible rubber bits are not allowed. Curbs may have straight or s-shaped cheeks, they may have fixed, rotating or sliding mouthpieces. The curb chain including its cover may be made of leather, metal, neoprene, sheepskin, rubber or a combination of and must be fitted in the conventional way.
Double bridles must be worn for all junior and Young Rider classes held at Premier Leagues/High Profile Shows including the Under 25 Championships and at FEI International shows.
If in any doubt about a bit, guidance should be sought from British Dressage in writing with a photo of the bit in question, the make and model.