How to Load and Launch with the Boat2Trailer Ramp N Clamp

By Rob, Boat2Trailer · Involved in automatic boat clamps since 2014 · Updated November 2026

Quick answer

With the Boat2Trailer Ramp N Clamp, set the clamp open with the handle down in the catch position, back the trailer in until 1.5 to 3 feet of bunk shows (or until the back rollers touch the hull), and drive the boat on slowly. The spring loaded clamp locks the bow eye automatically. To launch, unhook the strap and chain on dry ground, back in until the boat floats, and pull the handle while the boat pulls away.

The Boat2Trailer clamp and the Ramp N Clamp are the same product: the Ramp N Clamp automatic boat latch, made and sold by Boat2Trailer in Tea, South Dakota.

The complete how-to guide for the Boat2Trailer clamp on bunk and roller trailers

The complete how-to guide for the Boat2Trailer clamp on bunk and roller trailers (5:06).

People
1 or 2
Boat
Any
Hull
Aluminum or fiberglass
Bow eye
Any
Clamp
Sport Model, Model LGEN2, RT Series, Model T
Trailer
Bunk or roller

Before you load: set the clamp open

Before backing the trailer into the water, check that the handle is down in the catch position and the clamp is open. You won't normally find the clamp closed on an empty trailer, but if you do, pull the handle up to open it. If you're loading by yourself, park the trailer next to a dock so it's easy to get in and out of the boat.

How to load a boat with the Boat2Trailer Ramp N Clamp

  1. Back in to the right depth. Shallower is usually best. On a bunk trailer, back in until 1.5 to 3 feet of bunk is exposed. On a roller trailer, back in just until the back rollers can contact the hull. Heavier fiberglass boats may need the trailer slightly deeper.
  2. Let the trailer center the boat. The bunks or rollers need to contact the hull to center the boat and raise the bow into the clamp. If the boat comes in misaligned, pull the trailer forward a little.
  3. Drive on slowly at first. At the right depth, the bow should first touch the pad within about 5 inches of the bow eye. The clamp's 8-inch receiving channel guides the eye straight in.
  4. Let it lock. The clamp engages with relatively little pressure, so there's no need to ram it. With practice, you can glide the boat on with some speed and let it snap in.
  5. Pull out and secure for travel. Once the clamp is locked, pull forward onto dry ground next to the water's edge, then hook up the winch strap and safety chain.

Why won't the bow eye lock into the clamp?

If the eye has a hard time locking in or reaching the clamp, the trailer is most likely too deep, or the bunks are sticky and need lubrication. Needing a lot of throttle usually means the depth is wrong: too shallow, and the boat has to push up dry bunks; too deep, and the bow sits low and has to climb into the clamp. For sticky bunks, bunk wax helps a heavier boat slide up the trailer. More fixes are on the Ramp N Clamp troubleshooting page.

How to launch a boat with the Boat2Trailer Ramp N Clamp

Every launch starts the same way: unhook the winch strap and safety chain on dry ground next to the water's edge. The clamp keeps the boat locked to the trailer while you back in. After that, the release depends on your handle.

Remember: the weight of the boat opens the clamp, not the handle on its own. If the boat feels stuck, pulling harder won't help. The boat has to be pulling away at the same time the handle is pulled.
HandleWhen you pull itAfter the boat floats offBest for
Long handle (2-piece 18" aluminum)From inside the boat once it begins to floatSnaps back to the catch position on its ownReaching the release from the boat
Short automatic handle (5")From inside the boat once it begins to floatSnaps back to the catch position on its ownA compact handle that resets itself after every launch
Short manual handle (included with short handle models)On dry ground before you back in; it stays upPush it back down to the catch position by handBunk trailers that hold the boat on the incline without the strap

Long handle

  1. Unhook the strap and chain in the dry area next to the water.
  2. Back in until the boat begins to float, then get in the boat.
  3. Pull the long handle up to the release position. The clamp is now unlocked and lets go of the eye as the boat pulls away.
  4. Let go of the handle. It snaps down to the catch position, ready for the next load.

If you release from outside the boat or with a rope, use the rubber grip alone without the extension. Only add the extension if you need the reach.

Short automatic handle

  1. Unhook the strap and chain in the dry area next to the water.
  2. Back in until the boat begins to float, then get in the boat.
  3. Pull the short handle up to the release position while the boat pulls away.
  4. The handle snaps back down to the catch position on its own.

Short manual handle

The manual handle is only for bunk trailers whose carpeted bunks hold the boat on the incline once the strap is off. It comes in the package with short handle models and swaps in for the pre-installed automatic handle.

  1. Unhook the strap and chain in the dry area next to the water's edge.
  2. Pull the handle up. It stays in the release position while the bunks hold the boat.
  3. Back the trailer in and the boat floats off.
  4. Before your next load, push the handle back down to the catch position by hand.

Frequently asked questions

How do you load and launch with a Boat2Trailer?

To load, set the Boat2Trailer clamp open with the handle in the catch position, back the trailer in until 1.5 to 3 feet of bunk shows (or until the back rollers touch the hull), and drive on until the spring loaded clamp locks the bow eye. To launch, unhook the strap and chain on dry ground, back in until the boat floats, and pull the handle while the boat pulls away. The Boat2Trailer clamp and the Ramp N Clamp are the same product.

How deep should I back my trailer in to load my boat?

Shallower is usually best. On a bunk trailer, leave 1.5 to 3 feet of bunk exposed. On a roller trailer, back in just until the back rollers touch the hull. Heavier fiberglass boats may need the trailer a little deeper. The bunks or rollers have to contact the hull to center the boat and raise the bow eye into the clamp.

How should the Ramp N Clamp be set before loading?

Open, with the handle down in the catch position. If the clamp is closed on an empty trailer, pull the handle up to open it before you load.

Do I need to ram the boat to lock onto the Ramp N Clamp?

No. The clamp locks with relatively little pressure, and its 8-inch receiving channel guides the bow eye right in. Go slow at first; with the trailer at the right depth and some practice, you can glide the boat on and let it snap in.

Why won't my bow eye lock into the clamp?

The trailer is most likely too deep, or the bunks are sticky and need lubrication. Pull the trailer out further so the bunks or rollers lift the bow into the clamp. Bunk wax helps heavier boats slide up the trailer.

When do I remove the winch strap and safety chain?

On the dry ramp, next to the water's edge, before you back in. The clamp holds the boat to the trailer until the boat floats and you pull the handle.

Why does my boat feel stuck when I pull the handle?

The boat's weight opens the clamp, not the handle. Pulling harder on the handle won't help. Pull the handle while the boat is pulling away from the trailer and the bow eye releases.

When should I use the short manual handle?

On bunk trailers that hold the boat on the incline without the winch strap. It is included with short handle models. Pull the handle and it stays up, so the boat floats off when you back in. Push it back down to the catch position by hand before your next load.

Should I use the long handle extension?

Only if you need the reach. If you release from outside the boat or with a rope, use the rubber grip alone without the extension.

Read the full video transcript

Here's everything you need to know about loading and launching your boat with the Boat2Trailer clamp. First, let us walk you through loading the boat. Before backing your trailer into the water, verify the handle is in the down or catch position and that the clamp is open. On-screen is an example of a clamp that's open and ready to load and another example of one in the closed position. The clamp must be open with the handle in the catch position before loading. You won't normally find the clamp closed on an empty trailer, but if you ever do, pull the handle up to open it before you load the boat. You may now back down the ramp to begin loading the boat. If you're loading the boat by yourself, we recommend parking the trailer next to a dock to make it easy to enter and exit the boat. The depth for each boat and trailer combination will vary, but shallower depths are usually best. For bunk trailers, we recommend backing the trailer into the water until 1 and a half to 3 feet of the bunks are exposed. On a roller trailer, we recommend backing in just until the back rollers can contact the hull. These are only general guidelines. The bunks or rollers on the trailer will need to contact the hull to center and raise the boat into the clamp, and the correct depth for your setup may vary. If the boat is misaligned, bring the trailer forward. Here you can see the difference a shallower trailer depth made in aligning and raising the bow. When loading at the correct depth, the bow should first contact the pad within roughly 5" of the eye. The Boat2Trailer clamp has an 8-inch receiving channel that guides the eye of the boat right into the clamp before locking in. When first starting to load, take it slow, approach, reposition, and ease the bow in. With the trailer at the correct depth and some experience, you can glide the boat onto the trailer with some speed and let it snap in. The clamp engages with relatively little pressure, so you don't need to ram it to get it to lock. If the eye is having a difficult time locking in or getting up to the clamp, the trailer is most likely too deep or the bunks are very sticky and need lubrication. For lubrication, we recommend our Bunk Wax, which helps a heavier boat slide up the trailer more easily. Once the clamp is locked, pull forward into the dry area next to the water's edge. Then hook up the strap and chain for travel. When you're ready to launch the boat, the instructions for releasing the clamp depends on your handle. Here's how each one works. To launch the boat with the long handle, unhook the strap and chain in the dry area next to the water. The clamp will keep the boat locked to the trailer while you back into the water far enough so the boat begins to float. Enter the boat, then pull the long handle to the up or release position. When the long handle is up, the clamp is unlocked and can release the eye when the weight of the boat pulls the eye away from the clamp. The weight of the boat opens the clamp to release the eye, not the handle on its own. If the boat feels stuck, pulling harder on the handle won't help. The boat needs to be pulling away at the same time the handle is pulled for the eye to exit the clamp. When you let go of the handle, it automatically snaps down to the catch position, ready to load. We recommend only using the rubber grip piece without the extension if you plan to release from outside the boat. The same recommendation applies when using a rope. Only use the extension if you need the extra length to reach it. The process for launching with the short automatic handle is similar. Unhook the strap and chain in the dry area next to the water. The clamp will keep the boat locked to the trailer while you back into the water enough so the boat begins to float. Enter the boat, then pull the short automatic handle to the up or release position. When the short handle is up, the clamp is unlocked and can release the eye when the weight of the boat pulls the eye away from the clamp. Remember, the weight of the boat is what opens the clamp to release the eye, not the handle on its own. If the boat feels stuck, pulling harder on the handle won't help. The boat needs to be pulling away at the same time the handle is pulled for the eye to exit the clamp. The automatic handle then snaps back down to the catch position, ready for the next load. Launching the boat with the short manual handle works a little differently and is only meant for bunk trailers that hold the boat to the trailer on an incline when the winch strap is removed. This manual option is only available with short handle models of the Boat2Trailer clamp and is included in the package when you order. You can easily swap the pre-installed short automatic handle with the short manual handle. To launch the boat with the short manual handle, unhook the strap and chain in the dry area next to the water's edge. Pull up on the handle and it stays up in the release position while the sticky carpeted bunks hold the boat in place. The clamp is now unlocked and able to release the eye once there's pressure pulling away from the clamp. Back the trailer into the water and the boat is free to float off. After the boat floats off, when you go to park the truck, you must push the handle back down to the catch position manually before the next load. That sums up everything you need to load and launch your boat with the Boat2Trailer clamp. For more information, visit Boat2Trailer.com.

Which Ramp N Clamp fits your boat?

There are four models (Sport, LGEN2, RT Series and Model T), and the right one depends on which bow eye your boat has.

Check which Ramp N Clamp fits your boat →