Demystifying Low-Profile and Run-Flat Tires
Why Stiff Sidewalls Demand an Assist Arm
Low-profile performance tires and stiff run-flat assemblies are incredibly popular on modern vehicles. While they look sharp on the road, they are notoriously difficult to mount and demount using a traditional tire machine. The stiff sidewalls offer almost zero flexibility, leading to technician fatigue, strained machines, and damaged rims. [1]
If your shop is struggling with modern wheel assemblies, investing in an assist helper arm is the ultimate game-changer. Here is why. [1]
The Danger of Going Manual on Run-Flats
Without helper arms, technicians have to rely on raw muscle power and tire levers to force the bead over the mount head. This introduces a massive risk of slipping, which can deeply gouge expensive alloy wheels or tear the tire's inner bead structure. [1]
How an Assist Arm Saves Your Shop
Pneumatic helper arms—like the systems found on the [MAJOR LT-3950A with Assist Arm 310](https://www.tirechangermachine.ca/products/tire-changer-3950a-wheel-balancer-3550 combo-deal)—act as a tireless second operator. [1]
Drop-Center Pressing: Rollers and pressing feet securely hold the stiff sidewall down into the drop-center of the wheel rim while the turntable rotates. [1, 2, 3]
Lifting Disc Assistance: When removing a stubborn bottom bead, a lifting disc safely pushes the lower tire bead upward, eliminating manual prying. [1]
Zero Rim Contact: It provides immense downward force without ever touching or scratching the delicate face of the wheel. [1, 2]
Whether you prefer a single helper arm system or a Dual Helper Arm Machine for maximum capability, adding pneumatic assistance to your shop will speed up your turnaround times and keep your technicians safe. [1, 2]
Ready to upgrade? See our dual helper arm tire changers built for low-profile and run-flat work.
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