Trailer Measurements Guide Trailer Measurements Guide Use this guide to help determine the correct axle and rim measurements for your trailer and the light diagram for wiring. Shop Trailer Components Important Measurement Information Always verify your existing trailer measurements before purchasing components. What do you need help with? Axle Measurements Light Wiring Diagram Rim & Tyre Measurements Trailer Axle Measurements Choosing the correct axle is important for safety, load capacity and trailer performance. Face-to-Face Measurement Measure from one hub face to the other hub face. Load Capacity Select an axle suitable for the total trailer load. Common Axle Sizes Trailer Type Typical Axle Capacity Small Utility Trailer 750kg - 900kg Medium Utility Trailer 1600kg Heavy Duty Utility Trailer 2500kg If you are unsure about your axle measurements, send us photos and measurements via WhatsApp for assistance. Get Expert Advice Trailer Wiring Diagram Correct trailer lighting improves visibility and ensures road legality. Common Trailer Light Types Tail LightsMarker LightsNumber Plate LightsLED Combination Lights Wiring Tips Check voltage compatibility Trailer Lighting Notes LED lights are recommended for durabilityEnsure reflectors comply with local road regulations If you are unsure about your light connections, send us photos via WhatsApp for assistance. Get Expert Advice Trailer Rim & Tyre Guide Selecting the correct rim and tyre size ensures proper load handling and safe towing. PCD Measurement PCD refers to the bolt pattern spacing on the rim. Rim Size 13 inch14 inch15 inch Tyre Width 155195225 Load Rating Always use tyres suitable for trailer load requirements. Rim Size Use Rim Size Common Trailer Use 13” Small Utility Trailers 14” & 15" Medium - Heavy Duty Utility Trailers Need Help With Measurements? Our team can help you identify the correct trailer components. Send us: PhotosExisting measurementsTrailer specifications 076 215 1353 074 899 2442 076 215 1353 info@xtremetrailers.co.za Frequently Asked Questions How do I measure my trailer axle?Measure from hub face to hub face and spring centre to spring centre. What is PCD?PCD refers to the bolt pattern of the trailer rim. Can I use car tyres on a trailer?Only if the tyre load rating is suitable for trailer use. Are LED trailer lights better?Yes, LED lights generally last longer and provide better visibility.