Caravan Trailer Parts BlogWelcome to our caravan trailer parts help page.
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Read our most recent posts here. Couplemate periodically posts articles relating to trailer & caravan towing safety. For archived technical tips & tricks articles or towing products news check the Category menu.
“I have no idea what PCD is nor do I know how to calculate it?”….is an answer we hear frequently from customers. Technically, Pitch Circle Diameter (PCD) is the diameter of the circle which passes through the centre of the wheel studs, wheel bolts or wheel rim holes.
BatteryCheck enabled travellers to better understand the mystery inside the battery, providing valuable information on it’s health and status.
Caravan wheel nut indicators help identify loose wheel nuts caused by rough dirt roads. Broken wheel studs are regularity occurrence on open highways around Australia.
Wheel backspace is an essential measurement for the manufacture of axle length. The first thing you need to do when building a new trailer is to buy your rims and types.
Alternatively, you could purchase your rims and tyres from us and we’ll do the calculation for you. One more complication, we need to know your chassis width.