Big lifts, portal gears and tall tires all add leverage. That leverage has to go somewhere, and on a hard-ridden Kawasaki Teryx S, a lot of it ends up in the frame. Riders who build their machines up often learn the hard way that a stock frame was not designed for the extra stress.
The SuperATV Kawasaki Teryx S Frame Stiffener / Gusset Kit, available at Wild Boar ATV Parts, reinforces the weak spots before they become a problem.
Where frames get stressed
Every time a tire drops into a hole or climbs a ledge, the force works its way back through the suspension mounts and into the frame. A taller, heavier tire increases that force. A lift increases the angles. Portal gears add both clearance and torque. Put all of that on a machine that gets ridden hard, and certain areas of the frame start to flex more than they should. Over time, flex can lead to cracks.
How a gusset kit helps
A gusset adds a plate of steel across a joint or weak area so the load spreads over a larger surface. SuperATV makes these plates from 4.5 mm heavy-duty steel and powder coats them for durability. The kit is designed to add support and stability right where the Teryx S needs it, and it includes the hardware needed to install it.
Who should add one
- Teryx S owners installing portal gear lifts
- Riders adding a big lift kit or larger tires
- Machines used for hard work around the farm or ranch
- Anyone who rides aggressively in rocks and ruts
It is a lot cheaper to reinforce a frame now than to repair a cracked one later. If a big build is on the way, this is one of the parts worth installing first.
Installing a gusset kit is also a good chance to give the whole Teryx S a close look. Clean the frame, inspect welds around the suspension mounts and note any worn bushings. Catching small issues early, while the machine is already apart, saves time later and makes sure your new reinforcement is bolting up to a healthy frame.
Confirm fitment
This kit is made for the Kawasaki Teryx S. Kawasaki has built several Teryx versions over the years, so make sure your machine is the S model before ordering. While you are working under the machine, check for any existing cracks or damage that should be repaired first. If you have questions, the Wild Boar team is happy to help at 850-912-4350.


