This is why tow vehicle choice and coupling choice matter. Most standard utes max out at 3,500kg braked. The RAM 2500 tows 4,500kg on a 70mm ball but fitted with a pintle hook (as on the above build) it is rated up to 6,942kg, with approximately 12,750kg GCM on the latest models, comfortable, legal margin for a 4,500kg COF boat trailer. The trailer's coupling must be engineered and certified to match. THE 1.5:1 MASS RATIO RULE – A CRITICAL CHECK FOR BIG BOATS Under the Land Transport rule: Vehicle Dimensions and Mass 2016 (clause 3.14), when a light vehicle tows a heavy (COF) trailer, the trailer’s gross mass must not exceed 1.5 times the gross mass of the towing vehicle. This is a legal cap, not just a recommendation. In practice, to legally tow a 4,500kg COF trailer, your tow vehicle needs a GVM of at least 3,000kg. The RAM 2500’s 4,495kg GVM gives a maximum permitted trailer gross mass of 6,742kg, well clear of the 4,500kg Balex 770 COF. But many popular dual-cab utes have a GVM of 2,800 to 3,200kg, which puts a 4,500kg COF trailer at or beyond their legal towing limit. Always confirm the ratio before committing to a new tow vehicle. LICENSING – WHEN A CAR LICENCE ISN’T ENOUGH. On a full Class 1 (car) licence, you can tow a combination only up to 6,000kg total, the GVMs of the tow vehicle and trailer added together must not exceed 6,000kg. A RAM 2500 (approximately 4,495kg GVM) towing a 4,500kg rated COF trailer is a combination of roughly 8,990kg, well over the Class 1 limit. To tow it legally, you need a Class 2 licence, which covers combination vehicles up to 12,000kg GCW. Getting a Class 2 licence is straightforward for most experienced drivers who hold a full Class 1 (time requirements vary by age), pass a theory test for the learner stage, then complete an approved course or practical assessment for the full licence. Many of Balex’s COF trailer clients complete it in a few weeks. Feature 60 FISHING IN GODZONE MAGAZINE
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