If you are into car modifications, you have probably considered getting wheel spacers. But did you know that you could choose between two types: bolt-on vs. slip-on wheel spacers? If you aren’t familiar with their differences, this article will help you decide which types of wheel spacers best fit your car and what you should know when making your decision.
What You Need To Know About Bolt-on vs. Slip-on Wheel Spacers
Wheel spacers help you create more space between your wheel and your wheel hub, while still having everything function as usual. There are two main types: bolt-on and slip-on. Their main difference is in the way they attach to your car’s hub and interact with the existing lug bolts.
Here is a quick explanation of how they work:
1. Slip-On Wheel Spacers
Just like their name suggests, slip-on wheel spacers slide over your existing wheel studs. Their installation is fairly simple. You remove the wheel, slip the spacer over the studs, and reinstall the wheel using longer wheel bolts or lug nuts (if required).
- Slip-on spacers are typically used for minor spacing adjustments, typically under 10mm.
- They are ideal when your current studs are long enough to maintain proper thread engagement.
If your current studs aren’t long enough, consider using bolt-on wheel spacers.
2. Bolt-On Wheel Spacers
These wheel spacers are fastened directly to the hub using the vehicle’s existing studs. They come with their own set of studs, which are used to mount the wheel. As such, they are a more robust solution than the slip-on wheel spacers.
They are more secure for thicker wheel spacing and more demanding applications, such as fitting oversized wheels or improving track width for stability. Bolt-on wheel spacers don’t rely on the length of your car’s studs.
When To Choose Slip-On Wheel Spacers
If you don't want too much spacing on your tires, go for slip-on wheel spacers. Here are some other situations in which this wheel spacer type is the right choice:
- If you want this modification to be temporary, or if you just want to test how your car would look.
- If you don’t drive heavy loads or push your car’s performance to the limits, slip-on wheel spacers are a good option.
- Usually, slip-on wheel spacers are more affordable than the bolt-on ones, so keep that in mind when making your decision.
- In case you want to DIY install the wheel spacers, slip-ons are much easier to install (or remove).
- If you want to eliminate slight rubbing on the inner fender or suspension by installing wheel spacers, slip-on is the way to go.
When To Choose Bolt-On Wheel Spacers
There are also situations in which you should use bolt-on wheel spacers instead. One such situation is when you want a thicker, more aggressive, and noticeable spacing. However, there are also some other reasons why getting bolt-on spacers is a better idea:
- If your car has studs that are too short for the slip-on wheel spacers, you will need to choose the bolt-on ones.
- Bolt-on spacers are also better for the structural integrity of your car, which is extremely important if you drive heavy loads or drive off-road.
- If you want a permanent setup that you don’t plan to change anytime soon, bolt-on wheel spacers are a perfect choice.
- Many aftermarket wheels have aggressively low offsets, which push them even further out. If they are still too close to the fender liner, bolt-on spacers will fix this issue.
- If you want better high-speed stability, installing bolt-on wheel spacers will reduce body roll and improve cornering grip.
Effects of Wheel Spacers on Performance and Handling
No matter which option you decide to choose between bolt-on vs. slip-on wheel spacers, you need to be aware of their effects on your car’s performance and handling. Both options will not only affect your car’s appearance, but also how it behaves on the road.
Both wheel spacer types widen your car’s track width. This lowers the center of gravity and improves the stability. Your car will feel more planted, especially when you are driving more aggressively and at higher speeds.
Obviously, how big of a difference these wheel spacers will make depends on the chosen type. Slip-on wheel spacers will offer more subtle improvements, while the bolt-on spacers will affect your car’s performance drastically.
Explore more about what wheel spacers are.
Affordable Bolt-On Wheel Spacers
Now that you have learned the difference between bolt-on and slip-on wheel spacers, you have probably made your decision. If you have chosen the bolt-on wheel spacers, here are some of our top picks:
1. 4pcs 6x5.5 Wheel Spacers
This wheel spacer kit boosts your car’s stability, handling, and control by widening the axle track by 2.5 inches. It is made from aircraft-grade aluminum with corrosion-resistant bolts and a hub-centric design. As such, it offers long-lasting performance backed by a 2-year warranty:
2. 4x156 Wheel Spacers with Studs for Polaris Ranger
These wheel spacers fit many Polaris and Kawasaki ATVs from 1987 to 2012. They can enhance your car’s performance and stance with a 2-inch track increase. Their quality is unparalleled, as these wheel spacers are made from forged T6 billet aluminum with Dacromat-coated bolts:
Additional Tips
No matter which type of wheel spacer you choose, there are some additional tips you should follow. The first tip is about proper installation and routine maintenance. This will ensure the safety and longevity of your fitment.
- Always choose spacers made from high-quality materials, such as T6 aircraft-grade aluminum.
- Avoid stacking spacers or using low-grade hardware. Periodically inspect all components for signs of wear, corrosion, or loosening.
- You might also want to decide which wheel spacer sizes are good for your car: 1.5-inch or 2-inch wheel spacers are quite common.
This is especially important if you drive in harsh conditions or use your car off-road.
Conclusion
When choosing between bolt-on vs. slip-on wheel spacers, there isn’t one right choice. Both options are great in their own way, so it all comes down to your specific needs.
Slip-on spacers are ideal for minor adjustments and lightweight applications, while bolt-on spacers offer a more secure and durable solution for aggressive fitments.
No matter which option you end up choosing, make sure to install it properly and maintain it regularly.
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