What is tpi in tyres

  • What is tpi in tyres. This allows the casing of the tire to conform and flex to the road or trail you’re riding. With the new trail / downcountry version in 29×2. Before TPMS technology, vehicles couldn’t inform you of a drop in tyre pressure, which means you needed to check every tyre manually – and remember to do so regularly. 60 TPI tires prioritize durability and puncture resistance, making them well-suited for challenging terrains. Find out how tyre carcass construction affects your mountain bike performance and how to choose the right one for your riding style. Despite the big traction and sidewall protection, the weight has been well controlled. au. Rolling resistance is impressive too, and it's not a bad price either. Bontrager Gnarwal: The Gnarwal is designed for rough terrain and deep snow, with a studded version available as well. Oct 26, 2022 · A higher TPI (threads-per-inch) count means the tyre will more easily deform over whatever surface you’re riding over, increasing the contact area with the ground and therefore the grip on offer Lower TPI (ex. A tire’s TPI has a significant impact on its overall performance. But what does TPI mean? Is a higher TPI necessarily better than a See full list on mrmamil. 5 x 2. The casing is the heart of the tyre and is made of Rubber + Treads (Nylon, Cotton, Kevlar, Corespun). Higher TPI indicates a finer, lighter material while lower TPI has the opposite properties but also greater resistance to external stress. The 170 TPI Aspen in 2. So a low TPI tire is likely to be more reliable than a high TPI tire–again, all else being equal. Bicycle tires have a tire “casing”. Jan 12, 2022 · It is offered in three compounds (Dual compound, 3C MaxxSpeed, or 3C MaxxTerra), 60 TPI or 120 TPI casing options, and Wide Trail sizes optimized for 35mm rims. Feb 22, 2024 · The casing of a tire is made from threads of rubber. Lower TPI tires are durable and provide greater stability. The more threads, the more durable a bike tire is. Oct 3, 2023 · TPI, or Thread Per Inch, is a measurement in the tires thread count- of how many and how closely the thread is wound together in every inch. Higher TPI (ex. Aug 2, 2021 · TPI is the world’s leading educational organization dedicated to the study of how the human body functions in relation to the golf swing. It indicates the number of threads woven into one linear inch of the tire’s casing material. Oct 15, 2021 · The new 29″ x 2. XC tires tend to have higher TPI while downhill tires tend to have lower TPI. For example, a tire with a 27 TPI has 27 threads woven into every 1 inch of the tire, and 120 TPI casing means it has 120 thread per inch. Michelin North America notes on its website that it offers 33 tpi for entry-level tires or for abusive situations like downhill racing or freeriding, 60 tip for Feb 20, 2024 · The primary difference between 60 tpi and 120 tpi tires is their construction. On messenger bikes, the tires skid along curbs; on touring bikes, they cross continents without wearing out. Higher TPI conforms better to the terrain, offering a smoother, more comfortable ride while reducing the weight of the tire. A higher TPI will be lighter and give a more supple/flexible feel whereas a lower TPI will feel stiffer and will be more puncture and roll resistant. The best road bike tyres Tuesday, 18 June 2024 TPI (Threads Per Inch) A common indicator of the quality of the casing of a tire. ” DH Casing Mar 8, 2024 · Specialized recently updated their ever-popular Butcher tire with an all-new T9 rubber compound. Most of us are used to hearing about “thread counts” in the context of bed linen. As a comparison: This partially crystalline fabric is more cut-resistant than aramide and its tensile strength is five times higher than that of steel. However, the tire will also be more durable. 120 TPI) conforms better to the terrain, offering a smoother, more comfortable ride while reducing the weight of the tire. Aug 2, 2023 · The 120 TPI count sets it out as an endurance option, and the compound used is the brand's own in-house 'Gripton'. Two 120 TPI casing layers reinforced with a butyl insert provide the rider with the support and protection of a MTB tyre, but in a lighter package. The higher the TPI, the lower the resistance to punctures. The 29 x 2. is the acronym of Threads Per Inch, which refers to 2. View. A low-TPI tire has larger threads and more rubber, making it heavier and more sluggish. The Continental Gatorskin tyre is a durable and reliable option for all-weather road cycling, as reviewed on BikeRadar. May 21, 2018 · A brief explanation of what tpi means in real world conditions for cyclists. Higher TPI tires are lighter weight and provide a more supple ride. Tires with a low TPI are heavy and stiff; tires with a high TPI are light and supple. Feb 13, 2023 · TPI stands for Thread Per Inch and is a unit that measures the amount of fiber in the casing material. There are also dual-ply casings (like Maxxis DoubleDown) that use two layers of 120 TPI (rarely 60 TPI) for the best of both worlds. $56. This carcass is rated in term of TPI, or threads per inch, and is important for road cycling. Bontrager says that the R3 is one tyre that can do it all: 'Fast enough for race day, yet durable enough for every day. TPI 3 ply 180; £70; Apr 20, 2021 · This suits downhill and enduro bikes better. The higher TPI also helps the tire conform to terrain more easily, reducing rolling resistance. Maxxis TPI ratings are the threads-per-inch of a single casing ply, as compared to some competitor TPI ratings. , a more comfortable and smooth ride, and faster, i. P. 99 for the 26″ fat tire version. Aug 15, 2020 · The higher the TPI, the more lightweight the tire becomes and the more supple the ride of the tire. TPI counts generally range between 60 and 120 for most bike tires. Sep 10, 2018 · I use Maxxis tires and they have different compounds for grip and also different threads per inch (TPI). The trade off being higher TPI casings are more fragile compared to lower TPI casings. info@bikeexchange. Thin-wall (high TPI) tires tend to be lighter and have lower rolling resistance, but they're more easily damaged by road hazards. A tire with a Aug 4, 2022 · When you look at the spec for a bicycle tyre, it’s not just diameter, tread and tyre width that show up, there’s also a TPI number. We tested the Butcher Grid Trail T9 in both 2. Mar 12, 2024 · What does the TPI stand for? Threads Per Inch – 120 is the average among fat-tire bikes. A greater TPI, or threads per inch, results in a more supple tyre. 5 sizes, and pricing starts at $119. Mar 13, 2024 · Threads Per Inch (TPI) Every bike tire is made of a carcass of durable fiber the holds the tire together. Tires are measured with how many threads there are per inch. Free shipping on many items | Browse your favorite brands | affordable Awesome free shipping options. You can have a very cheap mountain bike tyre at 27 TPI with a thick carcass material. e. More recently, modern downhill and enduro tires are now using a double layer of 120 TPI, in a bid to make your overall tire weight lighter, and keep the same strength as a 60 TPI. A TPI count of 60 or less would be considered “low”, and creates stiffer, tougher tires that are better suited to aggressive situations like enduro and downhill. Generally, the higher the TPI number, the suppler the tire sidewall will feel and flex. 24. ” says Jan. 60 Tpi Vs 120 Tpi Tires Aug 24, 2023 · There are quite a few different versions of casing available from Maxxis, as it is largely responsible for how much a tyre weighs and how tough it is. Tire casing is the fabric that the rubber compound adheres to. Jan 8, 2022 · Maxxis 60 TPI vs 120 TPI Compared The two Maxxis offerings are both designed for mountain biking and each has its intended purpose. com and your local Trek retailer. Casing fabrics vary between 15 TPI for coarse utility tires to 120 TPI for very high-end tires. Lower TPI gives better puncture, cut and abrasion resistance but is heavier. The higher the TPI, the more threads a tire has, making it more lightweight and supple. Each layer of fabric is called a “ply. Aug 4, 2022 · The best road bike tyres and the best tubeless road tyres come with TPI counts that are anywhere from 60 up to 300-plus. In low TPI tires, the fibers or threads are much thicker, and there’s more rubber. “The higher you go with the TPI the lighter the tyre gets because the thickness of the carcass material goes down. Jul 2, 2021 · It’s usually a woven nylon fabric. Trail TNT has a 120 TPI Nylon protective layer on each side and anti pinch flat rubber inserts placed over the beads. Most tires have three layers of overlapping casing, so by that method of counting, a 100 TPI fabric will make a 300 TPI tire. By means of TPI we can measure how many threads there are in a casing by counting the number of threads per inch. At its core, TPI measures the thread density in a tire’s casing – specifically, it refers to the number of threads found in a linear inch of the tire. 8″ model is offered in both a 60 TPI/Dual Compound version and a 120 TPI/3C MaxxTerra option. The higher the tpi, the thinner and lighter the casing will be. Jan 11, 2024 · Here is what Maxxis has to say about the DoubleDown casing: “DoubleDown (DD) is the next step in the evolution of the dual-ply tire casing for enduro racing. The Kraken has been inspired by the Skeleton, our ultimate tire in terms of performance. 60tpi is our most common casing option, as it provides mid-level protection, durability and ride Apr 23, 2022 · TPI stands for Threads per Inch, a feature of your bike’s tires that affects its speed, safety, and comfort. Jul 21, 2020 · The Bontrager R3 Hard-Case Lite Road tyre offers plenty of grip, a supple ride and decent puncture protection. The density of the carcass fabric is expressed in EPI or TPI (Ends Per Inch, Threads Per Inch). Best road bike tyres in 2024: the 14 fastest clincher Dec 8, 2020 · “At Continental we have a polyamide carcass in different TPI (threads per inch) numbers. 4, the volume of the Kraken has been increased to allow you to go down in pressure and bring a maximum of comfort and serenity in the most chaotic parts of the trail. Higher tpi tires are described as more supple. We explain how in our detailed guide. I. Feel free to write us Oct 29, 2021 · What is TPI bike TYRE? T. Your tyre inflation pressure depends on the amount of air that has been pumped into your tyre. 75. The TPI Is the number of threads in the rubber of the tire that cross through one square inch of single ply. Feb 20, 2024 · What is the TPI in bike tires? Pumping a bike tire with a Presta valve adapter; How to recycle bike tires; Pin. Now what about layers of rubber? Casing can have “ply” like toilet paper, except way cooler. The higher 120 TPI T. Difference between 60TPI and 120TPI Jul 8, 2024 · The stiffer casing simply can’t conform as well to the ground as a 120 TPI tire can. They are used under the harshest conditions. Jun 29, 2023 · In high TPI tires, manufacturers use thinner fibers and less rubber to hold everything together. A tire with a higher TPI has finer threads and less rubber. However, a 60 TPI will make your tire heavier, so keep that in mind if overall weight is an issue for you. These threads, often made from materials like nylon, are woven together to form the casing, which is essentially the tire’s backbone. 120tpi is our thinnest, lightest and most supple casing. Most Maxxis Tyres are either 60 TPI or 120 TPI. The majority of our tires are 60 TPI, and our race tires are 120 TPI. This relates to your bike’s tires. Feb 18, 2022 · Better rubber quality. 3" and 2. 8″ version for those running 27. 4” tips the scales at just 685 g. Jul 25, 2024 · TPI (threads per inch) ratings are found on nearly all road tires and essentially tell you how supple a tire will feel on the road. Jan 16, 2023 · What Is TPI On A Bike Tire? TPI stands for threads per inch and is a measurement of the number of threads woven together within a single tire. Vittoria Corsa G2. Aug 6, 2024 · +61 (0) 1300 471 320. Find the best gear at trekbikes. A tire’s casing is the main body and structure of the tire and is generally constructed of one or more layers (referred to as “plies,” and often described with a thread per inch, or “tpi,” count) of a woven cloth material that are covered in rubber to hold it all together, seal in air, and offer some abrasion resistance. Caravan Tyre Maximum PSI. High TPI casings. TPI stands for threads per inch. Casing fabrics vary, and those with a lower thread count use Sep 14, 2022 · The casing, at 120 threads per inch (TPI) is relatively supple. " " Downhill (DH) utilizes two layers of 60 TPI casing material used from bead-to-bead, providing additional protection and sidewall stiffness for the most demanding enduro and downhill applications. May 18, 2023 · Puncture-proof tires typically have a very low TPI and high rolling resistance and are much slower because of this. Failing to inflate your tyres can easily become a critical problem. The low weight, high TPI, and smart placement of center lugs make for a relatively smooth, fast-rolling tire. Get the best deals on 27″ Wheel Bicycle Tires when you shop the largest online selection at eBay. However, the thinner threads are not as robust and are damaged more easily than their thicker alternatives. Email. Because the manufacturing process of a high TPI count is complex, it means that those tires are more expensive from a casing perspective than low-TPI count tires. The Contis also have more threads per inch (TPI) – 330 vs 110 – which, in theory, makes them more supple, i. The higher 120 TPI casing is lighter, thinner and will be able to better conform to the shape of the terrain. Higher TPI tires are lighter weight and provide a more supple (comfortable) ride. In principle, the more close-meshed a carcass is woven, the higher the quality of the tire. May 7, 2024 · Tanwall tyres (i. Getting the right road bike tyre pressure is critical to improve comfort and performance on the bike. 54 cm in the imperial system for bicycle tires. Easy installation. Cheaper tires have lower TPI casings, but most “performance” tires start at 60tpi and this is a great baseline because it’s both flexible and sturdy. The higher the TPI number, the thinner and more flexible the tire fabric is. , less rolling resistance. Jan 19, 2017 · A round up of 44 fat bike tires on the market. The greater the TPI number, the higher the quality of the tyre. Sealant-compatible rubber is used with the familiar Maxxis dual-ply 60 TPI downhill construction and butyl insert for support and rim protection in order to offer the benefits of increased grip and reliability. Higher tpi is usually reserved for lighter thinner casing tyresdh tyres are often lower tpi and are more durable, but don't conform to small bumps as easily so produce a firmer/harsher though more damped ride, by damped I don't mean absorbing bumps better but damped as in the tyre rebound slower and feels With thin thread, there are more threads per inch ("TPI") and this number is often considered an important indication of tire performance. Jul 21, 2020 · These tyres feel as smooth and supple as the highest quality high TPI tyres I've tested in the past (a Vittoria Corsa springs to mind) with silky smooth composure over coarse road surfaces. Especially when kevlar is used, since kevlar is more expensive than TPI. The casing is constructed with nylon, cotton or even silk threads. $78. The choice depends on the rider’s terrain and preferences. Monday - Friday, 9am - 5pm AEST. Lighter due to Kevlar cord, high TPI casing and less rubber. Jun 4, 2022 · Higher tpi = more comfort and less durable, lower tpi less comfort and more durable. Most of the tires come in 60 TPI casing however the racing tires are range from 120-180 TPI casing. Sep 15, 2020 · Types of TPI and Who should Choose What. TPI stands for "Threads Per Inch," and it is a measurement used to describe the construction and density of the casing of a bicycle tire. The best way to understand this is to start by telling you a little bit about what makes a tire. On the side of your caravan tyres sidewall, it will state (often in very small text) the maximum inflation PSI. Contact Form. Apr 18, 2024 · Although 120 TPI might sound thinner and flimsier, it’s actually the more robust variant, as it uses thicker fibres than the 170 TPI version, which uses thinner threads to make a thinner, more pliable fabric. For the tyres in our example (185 R14C 102), they have a maximum inflation pressure of 65 PSI. It defines the number of threads used in one inch of the tire casing. Top spec 3C Graphene 2. The tire casing is thicker than standard tires. The tread pattern is designed to provide optimal traction, cornering stability, more durability, puncture protection, and grip in aggressive terrain. It makes 320 TPI tires while the lowest one by the company is 26 TPI. Mar 23, 2021 · TPI is called the Threads Per Inch. Higher TPI tires will commonly have 120 threads per inch, and some companies are advertising tires with 240+ threads per inch. Shop now! Mar 23, 2023 · So per tyre, the 90% tyre load figure is 765kg. At higher tpi Apr 9, 2024 · A higher number of Threads Per Inch (TPI), will make the tyre more supple. Michelin offers 33 TPI for its entry-level tires designed for free-riding or downhill racing Tubeless downhill set-ups are a great way to shave some weight and spend more time in the bike park or shuttling hot laps on your local runs. Feb 6, 2024 · What is TPI? (Threads Per Inch) So, what is TPI all about? Threads Per Inch is a measure of the number of threads contained in each inch of the tire casing, essentially telling you about the tire’s density and texture. Apr 17, 2018 · A low TPI tire will usually have around 60 threads per inch, or sometimes even less. or even non-existent with tyres inflated to the max. Lighter. 5×4. There is also a 27. Conversely, 120 TPI tires feature finer, more supple casings, ideal for smooth surfaces. This increases the tire’s durability. Apr 20, 2015 · TPI 3/180 Compound carbon black mixture Bead Folding ETRTO 25-622 Size Inch . However, the 60 TPI casing is more resistant to puncture, abrasions and cuts. On average, the company provides its users with 120 TPI in the tires. More aggressive tires sometimes use two 60tpi casing layers to add more support and cut protection. Jul 27, 2021 · TPI / threads per inch. This means it'll deform more The Contis (in same size 700Cx25mm) are both lighter. These aren’t a pair of cotton-cased cyclocross tyres, and if you’re more of a touring mindset, or just want a bit more The illustrated vehicles may vary in selected details from the production models and some illustrations feature optional equipment available at additional cost. This means a more comfortable ride compared to that of a lower TPI casing. Jun 8, 2022 · Casing fabrics vary between 15 TPI for coarse utility tires to 120 TPI for very high-end tires. TPI stands for Threads Per Inch, which is a measurement used to describe the density of threads or casing plies in a bike tire. Aug 27, 2024 · You want predictable tyre rollover: The flatter profile of WTB tyres, This relates to casing. 60 TPI) gives better puncture, cut and abrasion resistance but is heavier. The Ardent is primarily for cross-country riding whereas the Minion is a downhill-specific tire. It’s by far the most aggressive all-terrain tire I’ve put on my bike to date. com. Convert tyre air pressure from pounds force per square inch (psi) to bar & kilopascal (kPa) units, and vice versa for car, bicycle, lorry, truck or an aircraft pneumatic tyre. Two 120 TPI casing layers reinforced with a butyl insert provide the enduro racer with the support and protection of a downhill tire, but in a lighter package. Generally, the higher the TPI number, the more supple the tire sidewall will feel and flex. Dec 30, 2020 · The inner nylon casing is measured in threads per inch. Tubeless downhill set-ups are a great way to shave some weight and spend more time in the bike park or shuttling hot laps on your local runs. High TPI MTB tires often need additional puncture-resistant inserts to prevent flat tires. Tire Mold. Heavier. Higher TPI counts lead to a tire that is lighter and more flexible, but also more puncture prone. Durability of the tyres over the 1,000km of testing miles has been very impressive. 0 TLR Road Tyre. Schwalbe’s Durano tires feature the same 67 TPI as the Marathon Plusses but are much more svelte at between 225 g and 530 g. Tire manufacturer Vittoria has the highest tpi in the industry, Otto notes, with a tire at 320 tpi; the company also makes road tires down to 26 tpi, with an average of 120 tpi. What About Puncture Dec 1, 2020 · The GP5000 is not by any means a new product for 2020 - but these tyres are used by testers and brands the world over as a control tyre - they're fast, supple and resilient. High TPI + soft tires = less rolling resistance and more grip. May 26, 2020 · I covered TPI (threads per inch) in my Ultimate Guide to Tire Pressure Post. Jan 4, 2023 · TPI stands for Threads Per Inch. This option is recommended for people looking for an all round tyre with good protection for most types of trails Jan 14, 2024 · A typical road bike clincher averages at about 120 tpi (the full range starts around 60 tpi and goes all the way up to 320 tpi on very high end clincher or tubular tires) with a single sheet of casing, while a mountain bike tire is about 60 tpi with two layers of casing, making them more resistant to damage. Effectively TPI refers to one inch of length of casing. the sidewalls of the tyre are yellow/brown/tan) used to indicate that the tyres have a cotton casing. What about the tires with 300 TPI or more? These makers count every layer of the tire. The higher the tpi, the lower the weight of the tire because less rubber can ultimately be used. This is the main body of the tire that lies beneath the exterior tread. The range of carcasses used, for example, for bicycle tires are 20, 24, 37, 50, 67 and 127 EPI. Price. 6" widths, and while the tread pattern hasn't substantially changed, this feels like an entirely new tire. A higher thread count High TPI casings are flexible like a full-time hatha yoga instructor decked out in lululemon. What’s tire casing? The casing is essentially the skeleton/main body/carcass of the tire and determines the tire’s flexibility, shape, resistance to punctures, and overall performance. This has the greatest impact in road tires, where tire pressures are higher. It refers to the number of threads or cords per inch in the tire casing material. They can deform on surfaces better than lower TPI leading to increased traction. Feb 4, 2023 · The choice of tire TPI should be tailored to the rider’s specific needs and riding style. Bike tire thread count casing (TPI): TPI (thread counts per inch) in the tire casing—the structural layer that underlies the external rubber layer on your tires—is analogous to thread counts in sheets in that higher thread counts indicate greater quality (and expense). Apr 30, 2010 · TPI A tire's nylon casing comes in different qualities and threads per inch (tpi). Reviewing the WTB Riddler tire has been an interesting experience. May 22, 2020 · WTB Riddler Tire. Also, similar to a kevlar vest, it provides puncture resistance keeping all the air and fluids where they need to be to function. It is measured in pounds per square inch (psi), bar or kPa. ” Generally speaking, the higher TPI tires are comprised of multiple plies of lower TPI fabric. What is a good TPI? Ideally, you look at the TPI of the casing fabric before it is made into the tire. Lower TPI makes tire stronger and durable but the higher TPI will make it lighter which is a key to road Tire Casing. TPI describes the density of these threads, which are laid diagonally in rubber-coated layers. 30tpi is our thickest casing option, providing the most durability, which ends up weighing the most but costing the least. 4″ Vittoria Syerra Downcountry tire gets a single-ply 60 TPI casing with an anti-pinch flat insert in the sidewalls For the sake of the question, if you are simply comparing a higher TPI material (such as 120) to a standard TPI (such as 60) material, the higher TPI does provide less protection, particularly in terms of impact resistance. The fabric of the casing can be made in varying thickness and threads per inch (TPI). Can be made of two or more pieces that when pressed together will form the tread pattern of the tire. Enhance your cycling experience with Bontrager H5 Hard-Case Ultimate Reflective Hybrid Tire. The number of threads in your casing is denoted by the TPI or threads per inch parameter. A higher tpi tire has more threads per inch in the fabric casing (which is sandwiched between the layers of rubber) and is what gives the tire it's structure. Technically speaking, this is the third gravel tire I’ve tried. Buyers can choose from either 26×3. After all, incorrect or underinflated tyres can cause unsafe driving, which may lead to accidents. Cons: Soft rubbers wear out faster. As a quick review, a higher TPI will be lighter and give a more supple/flexible feel whereas a lower TPI will feel stiffer and will be more puncture and roll resistant. Jun 3, 2021 · It's a design aimed at dry and loose conditions unconcerned with shrugging off rocks. Apr 1, 2021 · The purpose of the tire pressure monitoring system (TPMS) in your vehicle is to warn you that at least one or more tires are significantly under-inflated, possibly creating unsafe driving conditions. With a lower TPI, you have a heavier rubber compound in a tire, which means the tire’s overall weight is much higher. Threads per inch (TPI) is a common indicator of the quality of the casing of a tire. Threads Per Inch. They are more expensive, last less and puncture more than Jan 5, 2023 · 60 TPI mountain bike (MTB) tyres are a type of tyres that have a high-density construction of 60 threads per inch. Therefore, TPI is calculated by counting the number of threads contained in one-inch length of casing. A typical road bike tire will often have a TPI of 120 to 150, but some tires have a TPI of 220. For road cycling, where smooth pavement and high-speed performance are the priorities, tires with a TPI range of 100-200 are generally recommended. See all prices Vectran™ is spun from liquid crystal-polymer. TPI stands for “threads for inch” and is a specific feature of the casing. ' That isn't too far off of the mark. com Jun 29, 2024 · The TPI acronym is short for “threads per inch”. Vittoria, a tire manufacturing company has the highest thread per inch. With a lower TPI, you get a lot more lag on the road and on a trail, which can be very noticeable. 5″ wheels. This cotton casing makes for a super supple ride, better grip, and a low There are three commonly used measurements of pressure in tyres – PSI, BAR and kPa, and depending on your vehicle, you may need to convert from one to another. Four models are available, all of which feature SmartGuard and RaceGuard (a double layer of nylon fabric) technologies, come in different colors, and are ideal for high-mileage, wet-weather use. Here’s a general guide on how TPI can impact different riding scenarios: Road Cycling. " TPI stands for "Threads Per Inch," and it is a measurement used to describe the construction and density of the casing of a bicycle tire. Before we get into the different types of casings, we should talk about another technical term called TPI (Threads Per Inch). This way a thermoplastic, multiple-thread yarn is created. The shape is the same, but the new 170 TPI casing weighs 60 grams less. A high TPI (120-320) means that the tire will be light and fast, but it will be less durable. 8 or 27. Rest assured, though, that the same concept applies to bike tires. 0, TNT anthracite side wall combinations, for a higher level of protection while hammering aggressive terrain and Lower range 2C compound are available in Nylon 120 TPI casing with a Folding or Rigid bead, with durability and longevity as a priority. Tires with DuraSkin® sidewall protection have to be able to roll with the punches. All accessory orders over $49 ship to your home for free, and all accessory orders ship free to your local retailer for in-store pickup. TPI = Threads per inch. rbjfim asmv yzyqf fnv gdd jqrtf wgkl ffmzjoa ohgb xwgqv