You have now installed your own rims. Your email address will not be published. Home :. Gallery :. Policies :. Contact Us :. About Us :. View Cart. Cart Loading Products Viewed Loading Popular Tires BF Goodrich. The change in angle will do damage to the wheel bearing over time, which will not only cost you more but can also cause a dangerous situation. Offset is the term used to describe the location of the mounting surface in relation to the centerline of the wheel. Offset is important because it will also mess with your bearings and if you have an overly negative offset the wheel could start touching the chassis or other parts of the vehicle, especially the steering wheels.
Backspacing and offset are similar to one another, however; backspacing takes wheel width into account as well. It is measured from the inside lip of the wheel to the mounting surface.
Backspacing is important to keep the correct amount of clearance between the inside sidewall and the rest of the vehicle, similar to negative offset. The bolt pattern is more than just counting the number of bolts for your wheel. You also need to know what the spacing is.
The first number is the number of bolts or lugs, the second number is the diameter in inches of the bolt circle. The bolt circle is the circle you can make by connecting the bolts. Alternatively, you could measure from the center of one bolt to the center of the wheel hub to find the radius. Then just multiply the radius by two to find the diameter. The load rating is straightforward, it is the amount of weight the wheel can carry.
The more bolts there are and the bigger the bolt circle is, the more load a wheel can take. This is why some larger offroad vehicles will have many bolts in a large circle compared to a small city compact. Furthermore, the type of material the rim is made of will also impact the load rating.
Center bore is a critical element when you are using hub-centric wheels, and for fitting over full-floating axles, and locking hubs. Bead seat is likely only going to matter to you if you like off-roading with extremely low tire pressures. The bead seat keeps the tire on the wheel, the higher and wider the bead seat, the lower you can go, pressure-wise. As the wheel and tire rotate, the mounting arm will now force the tire's upper bead down over the lip of the rim.
Once you complete one full circle, both the tire's upper and lower beads will be passed the rim's upper lip. Inflate the tire with an air compressor. Connect the air compressor hose to the end of the valve stem you installed earlier, but make sure you get your hands and clothing completely clear of the tire before you turn the compressor on. Once you start the flow of air, the tire will rapidly inflate. Once inflated to the proper air pressure, the tire is mounted.
Method 2. Insert the valve stem if there isn't one present. Lubricate the valve stem with a bit of tire lubricant, then press it into the hole on the inner portion of the rim where the tire will later cover.
Next, take a pair of pliers and pull the valve stem outward from the hole. Lubricate the tire bead and rim. While tire lubricant is important for mounting tires with a machine, it's paramount when mounting them by hand. Apply lots of lubricant to the interior bead of the tire and the outer edge of the rim.
Make sure the entire top and bottom beads on the tire and entire edge on the rim are both well lubricated and reapply more lubricant as necessary. Lay the rim flat on the ground and place the tire on top of it. If the ground you're working on is blacktop or concrete, place a piece of cardboard beneath the wheel to avoid scratching it.
Make sure the surface you work on is flat, even and stable. Unlike with the machine, try to make sure the tire sits on the rim flat. Step on the tire with both feet to press the lower lip onto the rim. Ask a friend to lend a hand for balance as you step up onto the tire on one side. Then bring your other foot up and apply pressure to the other side and force the bottom bead of the tire down over the top lip of the rim. Do not do this without a friend to help with balance or you may fall.
Add more lubricant to the upper bead on the tire as well as the rim. With the lower bead seated, the real challenge will be getting the upper one to follow suit.
Apply more lubricant to help force the rubber down over the metal to make it a bit easier. Press the upper lip of the tire down onto the rim on one side. Angle the tire so that one part of the upper bead is down below the rim's edge. Press down on the lower portion of the tire if it doesn't quite make it past the lip on its own.
You may even need to use the pry bar to create the gap. If so, keep it in place once you're done. Use a pry bar to force the tire's lip over the rest of the rim. Move around the wheel, pressing down onto the tire with your hands and prying its bead over the upper lip of the rim.
This will take a fair amount of work, but should be done by the time you make it all the way around the wheel once. When you make it all the way around the wheel, both the tire's upper and lower beads should be completely past the rim's lip.
Once both beads of the tire are past the rim's lip, you can attach an air compressor to the valve stem and inflate the tire. Be sure to keep your fingers and clothing clear of the tire bead as the tire inflates. Howard Fleischmann. It can be difficult if you don't have the right tools, but you can manage it if you have a lot of lubricant. Not Helpful 0 Helpful 0. Include your email address to get a message when this question is answered.
By using this service, some information may be shared with YouTube. Most tires need to be balanced after they've been mounted. This requires specialized equipment you can usually find at most auto repair facilities. Helpful 3 Not Helpful 0.
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