Getting your flank cinch for western saddle setup dialed in correctly is one of those things that seems minor until you're halfway up a steep hill or trying to dally a steer. If you've ever felt the back of your saddle lift off the horse's spine when you're heading downhill, you know exactly why that second strap exists. It's not just there for decoration or to make the rig look "extra western." It's a functional piece of gear that provides stability and keeps your weight distributed where it belongs.
Most people call it a "back cinch," but regardless of the name, its job is pretty straightforward: it prevents the rear of the saddle from tipping forward or shifting side-to-side during heavy work. Whether you're a casual trail rider or someone who spends all day in the sorting pen, understanding how to use it right can save you a lot of hassle—and potentially a wreck.
What's the Point of a Flank Cinch?
The primary reason you'd want a flank cinch for western saddle use is to counteract leverage. When you pull on the horn—like when you're roping—the front of the saddle goes down and the back wants to fly up. The same thing happens when you're riding down a vertical drop on a trail. Without that back strap, the tree of your saddle can actually dig into the horse's shoulders, which isn't exactly a recipe for a happy horse.
It's all about keeping the saddle level. If you're riding a horse with a bit of a "downhill" build or one with a flatter back, that saddle might want to slide or tip even more. The flank cinch acts as an anchor point for the rear of the bars. When adjusted correctly, it keeps the entire footprint of the saddle tree in contact with the horse's back, distributing your weight more evenly across the ribs rather than just jamming it into the pommel area.
The Absolute Necessity of the Connector Strap
I can't stress this enough: if you're using a flank cinch for western saddle stability, you must have a connector strap (often called a cinch hobble) linking it to your front girth. I've seen people ride without them, and honestly, it's a disaster waiting to happen.
Without that little leather strap connecting the front and back cinches, the flank cinch can slide back toward the horse's flanks—the sensitive "tickle" spot near the hind legs. If that strap gets back into the horse's groin area, most horses are going to react by bucking. It's basically like putting a bucking strap on a rodeo bronc. The connector strap keeps the flank cinch positioned safely over the ribcage, where it's meant to stay. If yours is missing or broken, don't ride with the back cinch until you've replaced it.
Getting the Tightness Just Right
This is where things get a bit controversial in the horse world. You'll see some old-timers who keep their back cinch as tight as the front one, and then you'll see trail riders who let it hang three inches below the horse's belly. Neither is really ideal.
If it's too loose, a horse can easily catch a back hoof in it if they're scratching at a fly or navigating through thick brush. That's a quick way to end up on the ground. On the flip side, if it's too tight, it can interfere with the horse's breathing or make them feel restricted, which might lead to some "cinchiness" or sour behavior.
The rule of thumb I like to use is that the flank cinch should be snug against the horse's belly but not "tight" in the way the front cinch is. You should be able to slide a couple of fingers between the strap and the horse comfortably. It should touch the horse, but it shouldn't be squeezing them. Think of it like a snug belt versus a corset. It needs to be there to do its job the moment the saddle starts to lift, but it shouldn't be under constant tension while you're just sitting there.
Choosing the Right Style and Material
When you start looking for a flank cinch for western saddle setups, you'll notice they come in a few different flavors. You've got the straight leather straps, the flared "skirted" versions, and even some synthetic options.
The wider, flared cinches are usually better for roping or heavy cattle work because they distribute pressure over a larger surface area. If you're just trail riding, a standard 1.5-inch or 2-inch straight leather strap is usually plenty. Leather is the gold standard here because it has a little bit of "give" and it's durable. Plus, it looks right on a western rig.
Some people prefer mohair or felt-lined back cinches, especially if their horse has sensitive skin. If your horse tends to get galled or irritated easily, look for something with a bit of padding or a softer edge. Just make sure you keep the leather clean and oiled; stiff, dry leather is what usually causes those nasty rubs.
Why Some Riders Choose to Skip It
You might wonder why every western saddle doesn't have one permanently attached. For light riding on flat ground, you can often get away without a flank cinch for western saddle use. If you aren't doing anything that puts leverage on the saddle, it's just one more strap to buckle.
However, even if you think you don't "need" it, it's often better to have it and not need it than vice versa. I've been on "easy" trails that turned into a steep scramble, and I was sure glad my saddle stayed put. That said, if you're riding a very young horse that's still getting used to the feel of a saddle, sometimes leaving the back cinch off for the first few rides helps reduce the number of things they have to worry about.
Safety First: Introducing Your Horse to the Back Cinch
Don't just cinch up a flank strap for the first time and hop on. If a horse isn't used to the feeling of something touching their belly further back, they might get spooky. It's always a good idea to introduce the flank cinch for western saddle work in a round pen or a controlled environment first.
Cinch it up a little looser than normal, then lead the horse around at a walk and a trot. Let them feel it move against them. Sometimes they'll hump their back or take a few "stiff" steps until they realize it's not going to hurt them. Once they're relaxed, you can tighten it to the proper "snug" fit and you're good to go.
And one last tip: always unbuckle the back cinch first when you're unsaddling, and buckle it last when you're saddling up. This is a safety habit that keeps the saddle from potentially flipping or sliding back and becoming a bucking strap if the horse moves while the front cinch is loose.
Final Thoughts on Saddle Stability
At the end of the day, using a flank cinch for western saddle security is just good horsemanship. It keeps your gear stable, protects your horse's back from uneven pressure, and gives you a much more solid "feel" in the seat. It might take an extra thirty seconds to buckle it up and check the connector strap, but the peace of mind you get when the terrain gets rough is well worth the effort.
Just remember: keep it snug, keep it connected, and keep it clean. Your horse will thank you for the better fit, and you'll notice the difference the next time you're heading down a steep grade or working a cow on the ranch.