The reason N52 magnets stay put at 75 mph while N42 magnets don't lies in their superior magnetic strength and material composition. N52 magnets, the strongest commercially available neodymium magnets, provide the necessary holding power to withstand high-speed winds, while N42 magnets fall short in maintaining a grip under such conditions.
Understanding Magnet Grades and Their Impact
What Makes N52 Magnets Superior?
The grade of a magnet signifies its magnetic strength, with higher numbers indicating stronger magnetic fields. N52 magnets, recognized as the most powerful grade of neodymium magnets, produce a magnetic field strength of up to 14,800 gauss. This strength enables them to maintain a steadfast hold even in challenging environments like high-speed travel.
- Magnetic Field Strength: N52 magnets provide significantly more holding power compared to N42 magnets, which only generate a field strength of about 13,200 gauss.
- Material Composition: N52 magnets are made with a higher proportion of neodymium, iron, and boron, allowing for stronger magnetic properties.
Why N42 Magnets Fail at High Speeds
N42 magnets, while still strong, are not designed for extreme conditions. Their lower magnetic field strength results in reduced holding power, making them unsuitable for applications that demand stability at high speeds, such as holding custom covers on UTVs and RVs traveling at 75 mph.
Engineering Behind FIT Protection's Magnet System
FIT Protection has integrated N52 magnets into their custom-fit covers to ensure they stay put even in adverse conditions. Here's why our system works where others fail:
The Power of 850 to 3,000+ lbs Holding Force
Our covers are engineered to deliver an incredible holding force—up to 850 lbs for UTVs and over 3,000 lbs for RVs. This exceptional grip is due to the strategic placement and use of N52 magnets, ensuring the covers remain secure in crosswinds and rain, even at highway speeds.
- Marine-Grade Vinyl Shell: The durable outer layer resists weather damage.
- ½" Medium-Density Marine Foam Core: Adds protection and helps the magnets hold steady.
- UV-Stable, Welded Seams: Enhance durability and longevity.
Custom-Fit Precision
Each cover is custom-cut to fit over 90 UTV and RV models, ensuring a snug fit that maximizes the magnetic hold. This precision fit is crucial for maintaining stability at high speeds, preventing lift and flutter that could compromise the cover's position.
Key Benefits of Choosing FIT Protection
Rapid Installation and Removal
Our covers are designed for convenience, allowing users to install or remove them in under 30 seconds. This quick setup is perfect for those on the go, providing both protection and ease of use.
Built to Last
Manufactured in the USA, our covers come with a standard 1-year limited warranty, extendable to 2 years with the Road Warrior Bundle upgrade. As of June 2026, our starting prices are $349 for RV covers and $379 for UTV covers, offering competitive value for the level of protection and durability provided.
Why Choose FIT Protection?
When it comes to protecting your outdoor vehicles, the right magnet makes all the difference. With FIT Protection's use of N52 magnets, you can travel confidently at high speeds without worrying about your cover coming loose. Our custom-fit solutions provide peace of mind and superior protection, backed by a commitment to quality and performance.
To explore our range of custom-fit covers and find the perfect solution for your vehicle, visit our Custom Fit page. Experience the FIT difference today and ensure your investment stays secure no matter where the road takes you.
