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Leaf Springs vs Torsion Axles: What’s the Difference?

Feb 21, 2022||Daniel Thompson

We at Affordable Trailers hesitate to take on such a hot button issue as leaf springs vs torsion axles. People have lost the art of respectful discussion and now here we are being forced to weigh in what could possibly be the most contentious, consequential issue facing so many people knowing we could be doxxed or canceled. We had a colleague once say out loud that he preferred one type of shoelace, and with great swift, a small man popped out of a cupboard to educate him on why that was an ignorant choice. That’s a true story. But if we can all put down the stones and take a deep breath, we can parse out this issue and get some unbiased perspective on the advantages and disadvantages of leaf springs vs torsion axles.

To do this right, we have to explain the difference between them first.

Leaf springs are one of the oldest technologies for handling bumps and jostling and uneven ground with heavy equipment. These types of suspension systems layer curved leaves that slide against each other like a giant spring to protect the trailer and preserve the comfort of riders. These are still common because they are, on average, less expensive, easier to install, easier to repair, and more.

Torsion axles are arm-like structures that absorb force by moving inside casing filled with rubber strands. Force causes the arm to move, pivot, and compress the rubber inside before returning to its proper place. These systems are becoming more popular because they require less maintenance, reduce flex, and produce an overall smoother ride.

So they both sound great, right? Well, they are actually both great for their own certain applications. For example, lighter loads on smooth surfaces would be best served with torsion axles instead of leaf springs. Less vibration and bouncing, lower trailer height, and greater stability make this system the better choice. On the other hand, vehicles sitting for a length of time on uneven ground would be better off with leaf springs because they share and balance the weight more evenly. Let’s look at the advantages of leaf springs vs torsion axles types of suspension.

Leaf Springs

  • Less Expensive

  • Easier to Install and Repair

  • Better at Managing Heavier Loads

  • Less Damaging to Tires and Suspension When Parked on Uneven Ground

  • More Evenly Distributed Weight Takes Stress from the Chassis, Axles, Bearings, and Tires on the Road

  • Longer Life in Cold Weather

  • Greater Stability If There’s More Than One Axle

Torsion Axles

  • Smoother Ride (less bouncing and vibration)

  • Less Maintenance

  • Lower Trailer Height (Improves Handling Due to Lower Center of Gravity)

  • Lighter Weight

  • More Stability, Less Flex

  • Longer Life Overall

We’re not sure we settled anything. We’re still watching out for little men in cupboards as we write this. But if you want a trailer company that’s not afraid to walk the line of extreme controversy to help you choose the right trailer, then we’re right here. Contact us with any questions and give us a chance to get to know you and match you up with the perfect trailer to meet your needs.