Best Fat Bike Tire Guide
Cycling can be a notorious rabbit hole for those easily taken with marketing claims. Admittedly, it is a past time that attracts gear junkies. The vast options for fat bike tires is no exception. The newest bikes, parts, and accessories offer competitive cyclists a leg up, and even tempt recreational riders with promises of a revolutionized riding experience. For most of us with finite budgets and lives beyond bicycle technology, value is the name of the game: which investments offer real and noticeable improvements? Tires — in this article, specifically those for fat bikes — are the common answer, for an undeniable reason: no other part of a bike should touch the ground. Of course, even a bald and fraying tire might serve for grocery-getting, and its replacement could cost little more than an inner tube. It’s the extremes of bicycle performance where advanced designs, quality construction, and hefty price tags can come into play. High speeds, long distances, and challenging terrains can all make tire choice critically important. Fat biking is certainly an extreme, with tires to match. Ranging from just under 4” to over 5” wide, in 26” and 27.5” diameters, fat bike tire sizes alone can disorient a shopper more used to dry roads. Other factors are hardly simpler. Tread patterns vary in knob shapes, sizes, patterns and densities. Technical designators from “EXO” to “TRS” create a letter-and-word salad that varies from brand to brand. And brands themselves might be unfamiliar, with household names like Continental and Michelin replaced by such niche brands as Surly and Terrene. If your head is spinning by your fat bike tire options, you are not alone. Don’t worry – this guide makes picking the right tire for your fat bike a breeze. We’ll move step by step through the key features of your ideal tire. Then, we’ll highlight a few tire brands with particular strengths in the fat tire market, and discuss how specific models line up. What to Look for in Fat Bike Tires Diameter This is an area that is evolving. In general, older fat bike models use 26” diameter wheels and tires while newer models use 27.5”. Some 27.5” models could fit 26” rubber, but interchanging the two sizes means new wheels and numerous pitfalls. We recommend sticking with what already works: 26” or 27.5” should be clearly marked on the sidewall of a tire, unless the respective metric numbers of 559 or 584 are used instead. It is important to note that this is not simply about slapping wider tires on your mountain bike rims. See the next section for fat tire width considerations. Width Tire width is really where fat bike tires become their own thing, as opposed to the mountain bike market. Tire width is usually measured in inches, but consider it more of a guideline than a precise specification. That’s why it’s important to use tires only as wide as a fat bike’s manufacturer (and just as importantly, the rim maker) recommends. The factory tire width has the right amount of space figured in for muck, sticks, and differences in size between makers. Go bigger at your peril: tires that don’t fit can be difficult to return, and it’s possible for even a tire that physically “fits” to cut into a bike frame over time! Most fat bike riders will seek the widest tire possible for grip, but what about smaller widths? The biggest tires are most capable in sand and snow, but carry a penalty in weight and drag. Fat bike riders with experience mountain biking may prefer the feeling of smaller tires on the trail. Tire “width” really means height too: a large change could feel more stable but may put pedals perilously close to the ground. What is confusing for many entry-level fat bikers is that the rims/wheel widths are usually measured in millimeters, while the tires are almost always marketed in terms of inches of width. An 80mm rim is pretty standard for stock fat bikes these days. If there is a “standard” fit tire width, we’d say it is in the 3-to-4-inch range. The equates to roughly 80-100mm tire, as you might often see them referred to. This also goes for ebikes that call for fat tires, too. What is the widest fat tire width? We see a couple models that are just over 5″, a width that usually is advertised as a specialty snow tire. Tread Bicycle tire tread is broadly misunderstood, and busting tread myths fill an entire article. Line up a half dozen knobby tires side by side and relatively few cyclists could correctly match the tire design to the intended terrain. Even worse, tire designers and manufacturers themselves have been known to mislead or misunderstand. Did you know that the most effective road or commuter bike tire for riding in the rain is completely smooth? The majority of new bikes for sale tell a different story, with numerous small channels or “sipes” in their tires even for pavement duties. The truth is, taking away material on the surface of a road tire means less area to contact the ground and less grip, plus a waste of energy if deep, wide sipes let a tire squirm on hard ground. Mountain bikes and fat bikes obey the same rules but ride on tall, thick knobs. These knobs mean more area to contact, and so more grip, because they dig into soft surfaces. The effect is proportional: the hardest surfaces like pavement are best ridden with completely smooth tires, while the softest surfaces like mud are the focus of extremely knobby tires sometimes called “spikes.” Somewhere in the middle, hard-packed dirt and snow have enough give for small knobs to add grip, without needing heavy and slow-rolling spikes. Speaking of spikes, “studded” tires bear mentioning: small metal points in these tires provide a dramatic increase in traction on slick, glassy ice. However, studs range from useless to harmful in other conditions. On pavement, studs make a distinct … Read more