Seamax Deluxe 4x4 Boat Launching Wheel Set

BEST QUALITY HEAVY DUTY BOAT LAUNCHING DOLLY SET IN THE WORLD 4 STAGES WHEEL ARM LENGTH, 4 WHEEL ARM LOCK-IN POSITION

Originally designed with 3D-work by Seamax Marine back in 2011, Now it is the 2nd edition released in 2019. Seamax Deluxe Boat Launching Wheels system is made by the marine grade T6 aluminum alloy with CNC processing and shiny looking anodized coating against the corrosion. Thus, the product is good for saltwater use. Small parts are all made by solid stainless steel and reinforced Nylon. The air-filled tire is lab-tested (1000 LBS), and is great to support a MAX loading of 600 LBS in all condition. A great add-on for inflatable, aluminum and fiberglass boats.

Benefit of its new design - With the 4 stages of length and 4 wheel-arm position, the dolly can be adjusted while afloat in the boat, leaving or coming into the dock. The dolly system can also bring different performance positions for boat launching. The wheel arm length increment is 2.5” per stage. Plus its wheel’s distance, the range of length is 23 - 30 inches.

The wheel arm has 60° and 90° locking position to move up and down. The upper-60° position can free up more space on the top and side of the transom. The lower 60° position lets the wheels run at the same level as the prop, and thus turns the wheels as a prop guard when boat launching.

The transom bracket installation area is about 8 x 3 inches. Shorter transom bracket design brings more possible installation for all type of boats with different transom. The brackets can be installed at the waterline top position, so to avoid the water comes into the screw holes. We had developed a profile for the transom bracket in 2019. Now the bracket only requires 2 bolts to install. Easier to put it on your boat with the same loading capacity.

TRIPLE heavy duty, TRIPLE quality! Product is made by Seamax Canada with 2 years limited warranty and 100% Customer Satisfaction guaranteed! The Quick Operation Features of the Deluxe Boat Dolly include - spring load locking pin for wheel arm position adjustment; solid spring load buttons for wheel arm length adjustment; and quick released lock pin for wheel arm and wheel bearing.

ADJUSTABLE DESIGN: These wheels have 4 adjustment positions for length and angle to adjust the leg length, push in the spring-loaded buttons on each side of the leg and either pull or push to lengthen or shorten. To adjust the leg angle, push down on the spring-loaded bar near the top of the leg assembly and move the leg assembly to the desired location. To remove the leg assembly from the bracket, pull out the quick release pin located at the top of the leg assembly.

MAX LOAD: This dolly set is designed for boats with solid outboard transom. For easier moving, total weight should not exceed 600 Lbs including boat, outboard, and all gears.

TIRE INFLATION: Dolly tires may not be fully inflated when shipping; please only give 15-20 PSI pressure at room temperature before using. Best to use a car tire digital air pump to prevent tire over-inflation. Tire over-inflated will cause damage and the warranty is not covered.

MAINTENANCE: Wash it after using it from saltwater or sandy beach. Check tire pressure before every using. Don’t store the wheels under the sun or beside the heat to maximize its lifetime. Take the wheel arm off from the transom bracket when storing your boat. Lube the spring load dolly system if needed. Always keep the lock pin on the dolly bracket.

WARRANTY: Manufacturer 2 years Parts Limited Warranty within USA & Canada. 60 days free replacement on any defective components. Over 60 days of purchase, the replacement shipping cost is not covered by Seamax. Please take photos or return the product or parts to the retailer you purchased them from if there is a warranty issue. You can also contact Seamax for technical support. Commercial use is 6 months warranty.

DUAL WHEEL UPGRADE KIT: 14" Dual wheel upgrade kit is available for this Deluxe boat launching wheelset for heavy loading application or sandy beach use. We suggest the boat 14ft and up to use this upgrade kit, then you can have a wide enough transom to support 4 wheels operation.

INSTALLATION: This dolly set should only be installed by an adult with some experience in working with tools. To install the wheelset properly, you will need to drill 5/16” holes in the plywood transom for the mounting brackets. It is very important to locate the position of the holes correctly. Please check carefully including checking the wheel arm position before starting to drill any holes.

You must dry fit each leg assembly while being in their shortest setting before drilling any holes to make sure the wheels clear the sides of the tubes and the bottom of the boat by one inch or over.
The standard wheels must face towards the boat tubes (outside) and be as far apart as possible (this will give you more stability when moving the boat around) and clear the boat tubes by about half inch so they don't rub against the tubes when being raised or lowered. The wheels must also clear the bottom of the boat by about one inch when placed in their lowered position. (for inflatable boats)
The 2 brackets are same and both have 2 holes for bolt. Lock pin wire is connected to the bottom of bracket and located at central. Once you have determined the mounting positions for the brackets which should be straight up and down on the transom and about 6 to 8 inches up from the bottom of the bracket to the bottom of the boat, mark where to drill the 5/16” holes (or max 3/8”). This is best done by pulling out the quick release pin that separates the leg assembly from bracket.
The holes are the best to be above the waterline. But to be safe, shoot some good silicone or marine sealant caulking into the bolt holes from the outside then push the bolts through the bracket and through the holes in the transom. This will give you a good watertight seal. (this caulking is available at all hardware stores, we suggest using Sikaflex marine sealant)
Always double check before drilling any holes. Use the supplied washers and lock nuts on the bolts on the inside of the transom to secure the brackets to the transom and then cap them with the supplied acorn nuts to protect your feet and your inflatable boat when rolled up.

TIP 1: WHEN DRILLING THE HOLES, PUSH GENTLY AND HOLD A PIECE OF WOOD TIGHT AGAINST THE INSIDE OF THE TRANSOM SO THAT THE DRILL BIT DOES NOT CHIP THE INSIDE OF THE TRANSOM WHEN IT GOES THROUGH.

TIP 2: PLACE THE BOLT INTO THE FIRST FINISHED HOLE TO FIX THE BRACKET POSITION, BEFORE YOU DRILLING THE 2ND HOLE. IT CAN GUARANTEE THE TRANSOM HOLES 100% MATCH THE BRACKET HOLES.

Optional - 14” Dual Wheel Upgrade Kit

FEATURE: Upgrade the Boat Launching Wheel System from 2 Wheels To 4 Wheels; Suitable for Heavy Boats or/and Sandy Beach Use.

PACKAGE: 2x 14” Pneumatic Tire; 2x Dual Wheel Axle

NOTE: Check Your Existing Wheel Size Before Order this Kit. We Provide 12” And 14” Two Different Versions. Also Make Sure Your Boat Transom Has Enough Space to Add Additional 2 Wheels.