Research on the academic curbs

The snafflecurb

The most important bridling for the academic art of riding between 1550 and 1789, beside the cavesson, was the simple snafflecurb, which was called in France "simple canon". (Caution: this term is sometimes used in modern France today for a snaffle bit!), and in Italy "canone schietto" (schietto= true, pure).

Because an art-rider needs a gathering effect of the bridle (I use "gather" here for the German word "beizäumen" and the French word "ramener"), to bring head and neck to a good uprighting for a suitable collection on the haunches, a curb is his means of choice.

Is only one rein is pulled, only the leg on the same side is working, without tensioning the curb-chain; by pulling both reins simultaneously, the curbing action with pressure on the curb-chain occurs. (Caution: For testing the degree of tension of the curb-chain therefore one has to pull both reins simultaneously, to avoid a gross underestimation of the degree of tension!).

The mouthpiece of the snafflecurb is broken once, it is called simple, if its legs are smooth, conically getting bigger from the middle to the outside, and holds no additional parts inside the horse's mouth (for inducing the playing of the tongue, for example). It is so thick according to La Broue and Gueriniere because the horse's lips shall bear a good part of its weight, and a tensioning of the reins is noticed first by the lips before reaching the horse's tongue or even the bars of the lower jaw: by this the horse gains time to adjust to the rein tensing and can react before the pressure rises.

Citation Jacques de Solleysel, chapter 84: "The mouthpieces" in his book "Le parfait marechal", 1664:

"[..] The mildest and best mouthpiece is a simple snaffle-curb ("simple canon"), which is called "canon a couplet": and the thicker the outer ends are, the milder it is, because it is less able to force the horse.

In the well regulated schools one sees  few or none at all of other bridlings, as it keeps the horse's mouth sane and entire, and because with it the tongue supports wholly the effects, and  this part is not as sensitive as the bars, and the feeling is so fine, because the pressure of the bit goes obliquely over the whole tongue, and the horse obeys by the tiniest movements of the hand. Because when a bit touches the bars the mouth despairs soon. Finally one has to hold as a sure maxime, that with it we can teach the horse everything, shall say: if one can get from a horse every obeisance, which it is capable of, it would be pointles to force it with another one, because this is the best of all.

Mouthpiece of the simple snafflecurb after La Broue with a fredom of the tongue he thinks will suit most horses, thickness at the outer side ar.3.0 cm.


If both legs of the mouthpiece rise to the middle, they leave more space below them for the tongue, this is called the "freedom of the tongue". If this freedom is too high, the mouthpiece can touch the palate which irritates the horse greatly. And if on top of this a nose strap or cavecon is too tight, this situation gets even more severe, as the horse cannot open its mouth wide enough to avoid contact.
Is the freedom of the tongue to low, the movement of the tongue and the ability to play with it, as the old wished, is impeded.

A snafflecurb must have a slobber-chain for preventing the upper shanks to fall into the cheeks of the horse by limiting the width for the lower ends of the lower shanks.

A curb has two side-parts, called shanks, the mouthpiece is fixed between them. The shape of these shanks determine many of the effects of the mouthpiece.

Pulling at the reins leads to a rotation of the mouthpiece and brings back the lower branch and forwards the upper branch.

But even with reins hanging loose the curb can be working: the weight of the lower branch gives a little pressure on the curb-chain, if the horse has its nose into the air, until the horse has lowered the nose enough to be able to hold the bit with his mouth or until it is gathered as much as intended by the rider, in relation to the width of the mandibles to the throat, or to the lesson. The by many riders demanded always perpendicular front line is in many cases not possible nor called for nor making sense., and in some cases even a front-line of 45° (or even higher ) is the optimum. The French use the word „ramener“, which is mostly translated with "to bring head and neck of the horse to a beautiful poise", which sounds less rigid.

Salomon de la Broue: "Le Cavalerice Francois": A: before the line = hard,   o: on the line = normal,   E: behind the line = weak

This action without any pulling at the reins is correct only when the lower branches are positioned according to this specific horse: most horses profit best from a normal one, which is called "on the line of the banquet", in German "beizäumend". Horses with a weak mouth or neck , with a tendency of rolling in the neck, or with a to small Ganasche/ganache, until the chin touches the breast, need shanks "behind the line" = weak ones, so that these horses can put there nose more forwards. Horses with a strong mouth may need shanks which end "before the line" =hard ones to get them into the right poise.


In some parts the old masters write the horse's mouth should foam. The reasons for foaming is not swallowing the spittle and an increased production of saliva. Does this occur only because the horse is highly concentrated on its work, it is sometimes wished for, and a trembling of the lips often accompany it, but even then it should not be accepted for too long periods, naturally. Is the mouthpiece pressing onto the tongue too much, or the tongue is swelling or getting blue, this is an unwanted and harmful, and a comparably thin mouthpiece (even in a normal snaffle) can lead to massive injuries of the tongue.

Today the part of the shanks above the middle of the mouthpiece is called the "upper branch" and the part below the "lower branch".

The term upper branch was never used in olden times, it was called by La Broue and Gueriniere "banquet, with the eye of the banquet", later with Prizelius "Upper part", the lower branch was simply called "branch", in German "Baum".

During these over 250 years the most important center of reference for the directions front and back was the "line of the banquet (front = to the front-line, back = to the lower jaw) and for up and down the "middle line of the banquet" (up = nape and down =chin of the horse).

The mouthpiece was attached to the shanks at the middle of the banquet at the "bedding of the banquet" German: "Falz", (frz. „ply du banquet“), which in German was called "bottom", too.


Curb design with Löhneysen: G: weak bow,  H: normal bow,  I: hard bow (increases only by length)
4: high Upper branch, short lower branch, behind the line = weak curb
6: low upper branch, long lower branchn, before the line: hard curb
5: normal curb

The upper part of the banquet shall be leaning back a bit, so in rest the eye of the banquet will be on the line of the oral fissure and the leather coil of the headpiece does not slide to the back end of the eye (La Broue).

The lower branch can be made straight or curved. A straight one is recommended for the young, uneducated horse (together with the cavesson), at first without curb chain, later with it. Is the horse trained more, a curved one was recommended. The curve is generated by a higher place of origin of the lower branch, which leads to a stronger uprighting of head and neck of the horse, the higher it is placed. Gueriniere shows as a normal height one of a 45° in regard to the middle of the mouthpiece This bow is called "coude " in French, "Bug" in German. An important intensifying role plays an increasing distance of the coude behind the line.


Normal curb after  Gueriniere: he shows for all three variants only a middle height and length of the bow (see also far below)


Löehneysen, La Broue and Gueriniere are of the opinion, that a changing of the coude alone is useless without changes to the lower branches, but Prizelius thinks the bow and the lower branches can be changed separately with realizing an effect, ( His sketch in his book 1777 unfortunately was shown incorrectly, I have corrected it here) In this sketch there is no lower branch "behind the line", but only one on the line and four more in a rising hardness "before the line".

The very high departures 4 and 5 of the coude in Prizelius‘ sketch are not to be found in old depicitions, which comes to no surprise, as in the dictionary in the french Eisenberg it is explained that those would lead not to a higher elevation but instead to the horse taking his head between its legs.


Prizelius shows variants of the bow-height and the advancing of the "rosette" where the rein ring is fastenedt: 1: normal curb, 5: very, very strong curb
d: bedding of the banquet, where the mouthpiece will be attached


The ratio of the lengths of upper to that of the lower branch is an important indicator of the force effect of the curb (in Gueriniere's sketch it is 1:3). The full force is as good as never used in the academic art of riding, because here the horses are ridden solely on a curb bit only after having been trained for years together with a cavesson and have learned to react nearly completely on the seat aides, including a full halt. Should it happen that the an art-rider feels the need for a too hard force on the bit several times in a row, he will take again a cavesson additionally for some time, to keep the horse's mouth a sensitive as possible.

The length of the upper branch is important,too, because according to La Broue the force on the curb chain rises with the growth of its height. He recommends a height of 4 fingers (ar. 6cm), but important deviations may be necessary because of the size of the horse's head or mouth fissure.

The main reason for selecting a long lower branch is the prolonged rein way, which leads to a far lesser impact by a small pull on the rein, which happens all the time by the horse's and the rider's normal movements, and so the horse has far more time to prepare, when the rider starts to pull intentionally at the reins. All this leads to a good, light and trustful leaning on the bit and by that a wonderful, perpetual communication into the rider's hand

In horses with a weak mouth and an inclination to roll in their neck it is recommended to use a curb behind the line: this leads to a stop of the ends of the lower branches at the breast of the horse, which then stops the now useless pressure on the bars. Also the rider may try to use this now occurring pressure of the ends of the lower branches to try and teach the horse this as backwards signal (of course in addition to the seat aides and possibly the cavesson).

Should the lower branch not be shaped exactly adequate, one can help himself with adjusting the tension of the curb-chain for a weaker or harder effect.

All in all the simple snafflecurb is for the intended use the mildest, gentlest and most effective bridle, first together with the cavesson, to familiarize the horse with the intentions of the rider, and after having finished its "squire-time", without it (adding it again if problems occur or a new lesson is to learn).

Incidentally the duration of cavesson use has always been disputed: so thinks Claudio Corte in his "Il Cavallerizzo", 1562: "Has the horse reached this ripeness, I would advise to take off the cavesson, and to use false reins [additionally to the curb-reins;DA] only for a short time, and not, as diverse men do, use the cavesson for months, years or whole ages of men, before make up the horse...." (After the translation by Thomas Bedingfield, "The Art of Riding", p.57; 1584) .

La Broue explains the most clearly to us, that the cavesson is there only for the horse to learn the meaning of the rider's signals by the mouthpiece and the curb-reins. One should never ride the horse with cavesson alonne, as the horse then learns to pull on the reins (vol.2, Ch. 32) (this is valid also for the simple snaffle and the false reins). Every action of the cavesson has to be followed by an action of the curb-reins!


F.R. de la Gueriniere, "Ecole de cavalerie", S.33 


Parts of a curb, (P) = from the etching in  „Der Bereiter“ von Prizelius, 1777, Tab.II

fat letters (P..) from the: "Vollkommene Pferdewissenschaft" Prizelius 1777,Tab. XII

  1. banquet ( Sitzbank) (P XII, IV 1) = Oberteil (L): Bereich oberhalb des Unterbaumes 

  2. oeil de banquet = trou de banquet = (oberes) Auge (P)

  3. gourmette = Kinnkette

  4. esse = das lange Glied (P)

  5. crochette = der Haken (P)

  6. embouchure, morceau, mors = Mundstück (P), Gebiss

  7. branche = Baum (P XII, IV 3)

  8. coude = Bug (P) (P XII, IV i)

  9. jarret = Knie (P) (P XII, IV k)

  10. soubarbe = Lappen (P) (P XII, IV h)

  11. bas de la branche = der Absatz (P) (P XII, IV m)

  12. gargouille = der Überwurf (P XII, IV n)

  13. touret = Kloben (P),(P XII, IV o) Befestigung des Zügelrings

  14. trou du touret? das Klobenloch (P XII, IV p)

  15. chainette= Schaumkette (P); Beyketlein (Löhn)

  16. anneau = Zügelring (P) (P XII, IV q)

Brindley writes the banquet is the same  as the "Zapfen" (18)

cannon-mouth = Mundstück

bitt-mouth = Mundstück

sevil = Kloben



The following letters (P..) from: "Vollkommene Pferdewissenschaften", by Prizelius 1777,Tab. XII

  1. fonceau = Holzscheibe, die der Gebissschmied fertigte, zum Aufsetzen an jeder Seite des Mundstücks, um dessen Öffnungen zu verstopfen (Cotgr. 1611);

    - Enden des Mundstücks an denen die Bäume befestigt werden (Guer.1733):

    - Boden (Prizelius); (P XII, IV f)

  2. Zapfen, an dem das Ende des Mundstückes befestigt wird, unter dem Boden (P XIV d)

  3. talons: die beiden Schenkel des gebrochenen Mundstücks (P XII, IV y)

  4. pli: Knickstelle, Mittelgelenk der Trense und auch Boden

  5. brisé: gebrochen

  6. jeu = Spiel der Trense/canon simple

  7. arc du banquet = Seheloch, Bogen um das Mundstück für falsche Zügel (P XII, III h)

  8. ligne du banquet = Linie

  9. oeil de Perdrix = Loch für zweite Schaumkette

  10. boucettes = bouchettes = Mäulchen, Mündung

  11. rozette de la branche = Rose (Befestigung für eine Rose und für eine evtl. Zweite Schaumkette) (P XII, IV l)

  12. branche gaillard = hardie = unter sich zäumend

  13. branche foible = foible, flasque, = über sich zäumend

  14. broschettes = Zierkäppchen


Prizelius: "Der Bereiter", Tab II B

Prizelius: "Vollkommene Pferdewissenschaft"  Tab XII III

Prizelius: "Vollkommene Pferdewissenschaft",  Tab XII IV

My Reconstruction-Prototypes

Specification snaffle-curb “Normal”

Type: snaffle-curb

Shape: curved

Width of mouth: 130mm

Degreee of ramener/Beizäumung: medium/on the line/sur la ligne

Ratio of leverage 1:3,3

Length of upper branch: 60mm

Length of lower branch :200mm

Diameter of mouthpiece, outer part, measured perpendicularly: 31mm

Length of coude = 450mm

Angle of insertion of the coude at the banquet: between 7°° and 8°° o'clock from middle of the mouthpiece= 45°

Freedom of the tongue = height of middle line to uppermost rim of upper ring: 20mm

(the same as in La Broue`s second picture Vol. I, page 20.)

Material: Stainless steel V2A 1.430, 4mm for the side parts, 1mm for the mouthpiece; proper for use with food

Specification snaffle-curb “Nestier”

Type: snaffle-curb

Shape: straight

Width of mouth: 130mm

Hardness: weak/behind the line/flasque

Ratio of leverage 1:2

Length of upper branch:45mm

Length of lower branch :90mm

Degree of ramenr/Beizäumung = Distance from insertion point for the rein-ring to the line of the banquet :

20mm =12.5° angle from the middle of the banquett = weak

Diameter of mouthpiece, outer part, measured perpendicularly: 31mm

Freedom of the tongue = height of middle line to uppermost rim of upper ring: 20mm

(the same as in La Broue`s second picture Vol. I, page 20.)

Material: Stainless steel V2A 1.430,4mm for the side parts, 1mm for the mouthpiece; proper for use with food

Specification snaffle-curb “High Uprighting”

Type: snaffle-curb

Shape: curved

Width of mouth: 130mm

Degree of  ramener=Beizäumung: medium/on the line/sur la ligne

Ratio of leverage 1:3,8

Length of upper branch:60mm

Length of lower branch :230mm

Diameter of mouthpiece, outer part, measured perpendicularly: 31mm

Length of coude = 450mm

Angle of insertion of the coude at the banquet: 3°° o'clock = 90° from middle of the mouthpiece

Freedom of the tongue = height of middle line to uppermost rim of upper ring: 20mm

(the same as in La Broue`s second picture Vol. I, page 20.)

Material: Stainless steel V2A 1.430, 4mm for the side parts, 1mm for the mouthpiece; proper for use with food


Bridling towards - Lessons from the new curbs

A good posture of head and neck is important for the physical and mental health of the horse. For each of the different types of horses the best posture is differently and accordingly to the form and strength of the hind quarter, the forehand, the type of the neck, the Ganasche, the mind of the horse and not according to the present work task of the horse.

La Broue says it thus: „The horse shall hold head and neck in its middle and most beautiful posture”. The emphasis here lies on “its”! For an English full-blood during a race it may be the best, to hold “its nose into the wind” or “Wear the nose as high as the ears”. But in the academic art of riding we want to achieve a strong collection on the hind legs, to achieve the best possible turnability (on the hind legs), that means sufficient bearing power in the hind legs and the possibility of a great freedom of the shoulders (from weight).

A well schooled, full-grown horse adopts during a calm collection a good posture by its own, here the French word “ramener” / “r’amener” suits better, because it means “fetching towards” : this the horse can do on its own, without any effect by a bridle. The German word „beizäumen“ (= bridling towards) does not allow this utilisation.

A young horse (as the 5-6 year old ones are called in the academic art of riding, even younger should perhaps not be troubled with any curb) , can learn to achieve this posture faster and better, if an appropriate bridling is used. The best for this is a curb, which during the heyday of the academic art of riding in the utmost cases was a snaffle-curb. Contrary to every other bridling, a curb lifts up the nape of the horse (elevating effect) and simultaneously brings the nose downwards, which in the ideal case leads to a beautiful, evenly arched upper neckline.

The German word „Beizäumung“ (= bridling towards) on the other side has the advantage to mean solely the impacts of the curb. These effects we can divide into:

1. the auto-curbing (self-impact = automatic effect) happens without any action of the bridle-hand and occurs solely by the leverage of the longer lower branch, fortified by the weight of the reins

2. the active bridling towards by the rider’s additional pull at the reins

Is the curb build in a way that it effects a too strong auto-curbing, an uprighting/erection of the forehand is impossible, or only a false one by strongly working the spurs (the latter leads to double discomfort for the horse: it has to endure the spurs and the pressure of the chin-chain, too, and additionally is often leading to a false kink in the horse’s neckline). Also, bringing the horse to collect its forces by a too strong curb will lead to a collection on the forehand. In extreme cases the horse then will bring its nose close to the ground, creating in effect a gradient of collection near zero.

The auto-impact of a too strong curb impedes: a far-reaching out in all gaits (the famous spacious walk of the Knabstrupper for example), and also a sufficient load-discharging of the forehand (which means that a beautiful,relaxed school-halt, the Terre-A-Terre, a beautiful school-canter and a beautiful lifting of the forehand are impossible); and the desired maximal gradient of collection for the specific horse in the specific lesson cannot be achieved.

Is on the contrary the build of the curb rather too weak, the rider can counteract this weakness by pulling at the rein precisely that amount of pressure on the chin-chain he thinks necessary at the moment, to gain the sinking of the nose he wishes for (= tilting of the front line of the horse’s head) should he feel, that the auto-curbing is not sufficient.

The most important goal for us in the academic art of riding thus is to find a curb, which allows the maximal gradient of collection: if then it feels to weak, we can always add curbing-impact by our hands. Maxim: “Better too weak than too strong”!

Reasons for choosing a too strong curbing bridle on the other hand can be: the rider has not much confidence, and wants, being a beginner, rather not the maximal uprighting (and accepts as a backlash having to drive the horse much more); or he might want to attach the reins to his belt and ride with free hands; or he wants as a western-rider to put the horse on the forehand, with a consecutively sinking down of the head, to get it out of the lasso’s way; or he wants to train a war horse for the fighting in the turmoil to achieve a low school: here it is important, that the horse doesn't loose its equilibrium, if impacted by other horses, which easily might lead to an overturn of horse and rider; also a low posture of the horse's head allows all-around hits with the sword much better: these horses are trained only in the low lessons, for example the Terre-A-Terre, which lets the horse stay near the ground always, but they are never trained in the elevated schools, so that they won't accidently execute these of their own volition during the fighting.

Contrary to that a war horse for fight duels one against one needs to be high schooled and gets a weak curb: important is for these being able to execute a good sword-passade, at which's end follows a swift, precise turn, to attack the enemy again: for this the horse needs a high elevation of the forehand, which in this case is not nearly as dangerous, because the only two riders and horses can far better observe the other, and an impact of the horses happens far more seldom; here even a Capriole, where the horse is completely in the air, is not as dangerous for loosing the equilibrium. As La Broue  writes, with an excellent rider-horse pair also the jump forwards off the hindlegs in a Courbette  can be a big advantage in a duel. The horse's head is not in the way so much, as the rider can position his horse far better to the only enemy (which hopefully happens to be the sword-hand side!).

In the old depictions one  can often find a horse with a "falling-through" curb (= the lower branches are in a right angle to the horse's mouth fissure): This can mean that the rider is not able during a fight  for his life to finely handle the reins, which means that then the reins are pulled far too much, which can result in damages to the horse's mouth; or it can mean a: that the rider was so prescient to loosen the curb-chain before the fight, to prevent this damage, or b: he loosened it to reduce the elevation of the forehand and consecutively lower the chances of the the horse rising up from the earth; or c: because now only an effect similar to a normal snaffle occurs, this will lead to the horse leaning onto the bit, which in turn leads to a lowering of the head, proper for sword-fighting all around.

If the rider wants to permit his low schooled horse to wear its nape somewhat higher, he doesn't have to alter his curb behind the line of the banquet, he can at first try to gain a higher elevation be loosening the curb-chain a bit. The same is valid the other way around: if one wants to reduce the elevation in a high schooled horse, one can reach this to some dgree by tightening the curb-chain.

State of research 05.10.19:


The Nestier curb is stable enough, also there has not been a single breaking of the security-pins during all the months: I’m very pleased and will leave the design just at it is.

Both snaffle-curbs with the long branches on the other hand I had constructed too weak: the branches bend to the outside over the weeks by the weak pull to the sides while stellning the horse’s head: but as their distance is fastened by the chains, this leads to a tilting of the mouthpiece wings and by that to a prominent elevating of the freedom of the tongue, which, at least for the moment, I don’t wish for. (s. photo below)




To prevent this now one could:

a. make the material thicker, or:



b. make the lower branches broader, but

c. meanwhile it became clear to me, that the sousbarbe’s function in Gueriniere’s snaffle-curb is not mainly to give a place for the lower bore-hole for fastening the broschette, but to serve much more as support for the branch against the outward-bending, and it is constructed accordingly: firstly by the place where it touches the branch, which lies below the main location where a bending occurs.

Secondly I’m convinced, that the funny shape of the sousbarbe is a result from long-time testings of the bridle-smiths and that at every cross-section of it nearly the same resisting force against the outside bending exists, in which distance from the touching point ever.

This leads to a, relative to the low material-use (= low increase in weight) compared to the great gain in stability, and thus to a far greater service-intervalls for re-aligning the lower branches, which surely sometimes are necessary.

Also the touching point is chosen thus, that in case of an impact with a strong force, the branch can slip out under the sousbarbe and facilitate thus a bending outwards. This reduces noticeably the forces working inside the mouth of the horse and thus possible injuries. This force had been during my riding accident with the fight-dogs so great, that a dent by Picasso’s molar-tooth occurred in the mouth-piece!

As this force had been so impressive, I had decided at that time, NOT to reinforce the branches nor the walls of the mouthpiece, to maintain their function as crush-zones.



Grisone, La Broue and Löehneysen as war-riders on the other hand couldn’t afford thess sensitivities, as their curbs during a war had to be always ready and workable, but Gueriniere rid only for the art.

But also these slim  shanks tend to get deformed backwards over the weeks, even by the weak  tensioning of the reins, and as an indicator of this, the position of the little spiral at the touching point is superbly fit; Also I could imagine, that this spiral could be rolled out a bit, if the shanks had been brought back a little way, to bring the curb behind the line of the banquet.

So now I just will make and weld on four sousbarbes a la Gueriniere and test these. It remains exciting!


Italian terms in the "Cavallo Frenato" by Pirro Antonio Farraro, Naples, 1602:


Is it possible to put the horse’s head by using a curb?

Many will say “No!”, because a snaffle-curb as well as an unbroken mouthpiece act “wrongly” if the rider, for example while riding with separated reins, pulls the rein sideways away from the horse’s neck: because then the inner side-piece is pulled away from the horse’s head in such a way, that the shank’s lowest end with the rein-ring will point away from the horse into the circle, and therefore an unbroken bit will rise on the inside and sink down on the outside.

The same happens with the broken bit of a snaffle-curb, if the rein is pulled away from the horse’s body, because the slobber-chain sees to an upper distance-limit of the lower branches from each other: so the inner lower branch pulls the lower end of the outer branch via the slobber chain  to the inside of the horse, under the horse’s head, too, with the same result as with an unbroken bit.

So, if one pulls the rein to the side away from the horse’s neck, in both types of curbs the inner part of the mouthpiece will rise up, and the outer part sink downwards to (or s.t. even onto) the outer bar, which leads to the sliding of the mandible into its inside-position, which in turn leads always to an outside putting of the horse’s head, which in the utmost cases is unwanted for.

But if one pulls (for example in the one-handed leading of the reins) the inner rein backwards to the rider while it is leaning against the horse’s neck, the inner part of the mouthpiece tilts downwards and produces a sliding of the mandible into its outwards position, leading to the putting of the horse’s head to the inside, which is nearly always the desired effect.

Here a difference surfaces between the both types: an unbroken mouthpiece comes, the more it sinks down on the inside, in the same degree upwards on the outside and there also forwards: it lies oblique in two planes.

A snaffle-curb in contrast works differently: here only the inside wing of the mouthpiece sinks downward, entirely without influencing the outer wing at all, as the slobber chain at first has very much play before it finally will start to affect the outer lower branch.

So, if one wants to achieve an inside-putting of the horse’s head by a curb rein, one has to observe meticulously (as well from the saddle as from the ground) never to pull the rein away from the horse’s neck, but only to induce a “tinkling” by the mouthpiece through a pulling backwards the inner rein while it lies along the neck of the horse, or else the contrary effect is due to occur!

So the question, if it is possible to put the horse’s head by working with a curb, must be answered in two ways: One is a “No”, as with a curb-rein one cannot simply pull the horse’s head around to one side like with a cavezon-rein, because hereby an unwished-for sliding of the mandible into its inside position results.

On the other hand with a “Yes”, because it is possible to nicely induce sliding of its mandible into the outside-position with the inner curb-rein while it lies along the horse’s neck, though a further putting of the head must be achieved by other means, for example by a pressing or tapping with the inner calf  or with showing the switch along the outer neck.



Update 17.09.2020


To weld on the slobber-chain hasn't been so good an idea: fatigue-fracture after 14 months:


next time it might be better to fix it the way it was done on this curb in the castle of Saumur:

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