If you have spent any time shopping for a spare tire cover, you have probably noticed two very different attachment styles on the back of the listings. Some covers have a thick elastic band that grips behind the tread. Others have a drawstring cord that you tighten manually with a clamp at the back of the spare. They look almost identical from the front, and most shoppers ask the same reasonable question: which one is actually better?<\/p>\n
The honest answer is that neither attachment is universally better. They solve the same problem \u2014 keeping the cover snug against the tire through wind, weather, and highway driving \u2014 in two slightly different ways. Each has trade-offs you only really notice after a year or two of use.<\/p>\n
The reason you do not get to choose freely between them is that the attachment is built into the material itself at production. Polyester, the lightweight fabric in the entry tier, uses a drawstring cord. Every other material we make \u2014 PVC, PU Leather, and Marine Grade Vinyl \u2014 uses an elastic band.<\/p>\n
Here is how each system works in practice, and the situations where one ends up clearly better than the other.<\/p>\n
Polyester covers ($69) use a drawstring cord that tightens at the back of the spare and can be re-tightened any time. Every other material \u2014 PVC, PU Leather, and Marine Grade Vinyl \u2014 uses a sewn-in elastic band that grips behind the tread and needs no adjustment. Both systems stay put at highway speeds in normal driving.<\/strong><\/p>\n The drawstring system runs a cord sewn around the inside circumference of the cover. The cover slides over the front of the tire, the cord is pulled tight at the back, and a cord-lock clamp holds the tension. Installation takes about a minute the first time and seconds after that. Polyester is the only material in our range that uses it.<\/p>\n The elastic system runs a wide, heavy-duty elastic band sewn around the inside edge of the cover. The cover stretches over the front of the tire and the band grips behind the tread automatically. Once it is on, there is nothing to adjust. This is the attachment on every material above the entry tier, including the 5-year Marine Grade Vinyl and the Marine Grade Vinyl + Anti-Theft Kit.<\/p>\n You do not really pick the attachment on its own \u2014 you pick the material, and the attachment comes with it. The pairing is:<\/p>\n Because the split is lopsided, the practical decision is simpler than it looks. If you specifically want the adjustability of a drawstring, you are choosing Polyester and its roughly 2-year outdoor life. Everyone else picks the material that suits their climate and use, and takes the elastic band that comes with it. In day-to-day use, most owners do not notice a meaningful difference once the cover is installed \u2014 both systems stay put through normal driving, weather, and highway speeds.<\/p>\n The Marine Grade Vinyl + Anti-Theft Kit ($199) is sometimes mistaken for a third attachment system. It is not. It fits with the same elastic band as the standard Marine Grade Vinyl. The lock is a separate layer on top: two reinforced grommets are set into the cover, a steel cable threads through them, and a padlock and key close the cable. With the cable locked, the rear opening cannot be spread wide enough to pull the cover back off over the tire.<\/p>\n The attachment is rarely what fails first \u2014 the material is. Polyester’s cord-lock clamp is replaceable, but the fabric itself is rated to about 2 years outdoors. The elastic band is not separately replaceable and loses some tension after 4\u20135 years of UV exposure, but it is fitted to the materials rated to 3\u20135 years. In practice, the cover reaches the end of its material life at roughly the same time as its attachment.<\/p>\n Yes. Elastic bands grip behind the tread and are tested at highway speeds. Under normal driving conditions, the cover does not shift.<\/p>\n No. The Marine Grade Vinyl + Anti-Theft Kit fits with the same elastic band as the standard Marine Grade Vinyl. The lock is a steel cable that threads through two reinforced grommets in the cover and closes with a padlock and key, so the cover cannot be pulled back off over the tire.<\/p>\n Tighten the cord-lock clamp at the back of the spare. Pull the cord through the clamp until the cover is snug against the tire, then click the clamp shut. The whole adjustment takes about ten seconds.<\/p>\n Both do, if the cover is installed correctly. The free centered backup-camera hole is cut to spec on every cover regardless of attachment. As long as you align the cover squarely on installation, the hole stays where it belongs.<\/p>\n The attachment is part of the package. Choose the material that fits your environment and use, and the attachment will be the right one for it.<\/p>\nDrawstring cord attachment (Polyester only)<\/h2>\n
What it does well<\/h3>\n
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The trade-offs<\/h3>\n
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Elastic band attachment (PVC, PU Leather, Marine Grade Vinyl)<\/h2>\n
What it does well<\/h3>\n
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The trade-offs<\/h3>\n
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How to pick between them<\/h2>\n
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Where the Anti-Theft Kit fits in<\/h2>\n
Frequently asked questions<\/h2>\n
Which attachment lasts longer in the real world?<\/h3>\n
Will an elastic-band cover stay on at 70 mph?<\/h3>\n
Does the Anti-Theft Kit use a drawstring lock?<\/h3>\n
My Polyester drawstring loosened. What do I do?<\/h3>\n
Does one attachment hold a backup-camera hole position better?<\/h3>\n
Pick the material, get the right attachment<\/h2>\n