4.5/26-17 Tire Size Guide

The 4.5/26-17 is a specialty numeric size that uses inch-based dimensions rather than a modern P-metric layout. In this code, 4.5 is the nominal width, 26 is the secondary dimensional figure used in this racing-style format, and 17 is the wheel diameter in inches.

Unlike a modern metric code, the 4.5/26-17 does not directly spell out a section width in millimeters, an aspect ratio, or a radial construction letter in the size itself. Buyers should read it as a purpose-built competition format and confirm the actual tire construction, wheel fit, and intended use from the tire and wheel combination rather than assuming it works like a street-oriented passenger-car size.

The 4.5/26-17 fits a 17-inch wheel, which is 431.8 millimeters at the bead seat. That wheel diameter must match exactly, because a tire built for a 17-inch rim cannot safely mount on any other rim diameter.

Wheel width matters too. In this size, the product shown uses a 4-inch rim width, so buyers should pay close attention to the tire's intended wheel profile and not treat the diameter alone as the full fitment answer. For a specialty racing-style tire, bead seating, sidewall shape, and front-end clearance can all change if the wheel width differs from the tire's intended setup.

The 4.5/26-17 has a section width of 4.5 inches, which is 114.3 millimeters. Section width measures the tire at its widest inflated point from sidewall to sidewall, not across the tread surface.

Clearance checks should be based on section width because that is the part of the tire most likely to interact with suspension pieces, frame rails, or bodywork. Tread contact width is usually narrower, so relying on tread measurements alone can create fitment surprises. On a narrow front-runner style tire like the 4.5/26-17, width is often part of the reason buyers choose it for tight front-end packaging.

Yes, 452617 is simply another written form of the 4.5/26-17 size. The numbers represent the same basic size designation, just without punctuation.

Alternate formatting like 452617 or 4.5 26 17 can appear in searches, old references, or product lookups, so it helps to recognize them as notation variants rather than different fitments. Even so, buyers should still confirm the actual wheel diameter, construction type, and intended application, because similar-looking specialty size codes can belong to very different tires.

The 4.5/26-17 is commonly a tube-type fitment and is often set up with a tube. Tube use is still a wheel-and-tire-system question rather than a size question, so the final decision should be confirmed against the actual wheel and tire being used.

Specialty bias-ply and racing-oriented sizes often depend on bead design, wheel construction, and the manufacturer's mounting guidance. A buyer should not assume that every tire in the 4.5/26-17 size uses the same tube arrangement just because the size is similar. When the wheel, valve arrangement, or intended use is in doubt, a qualified tire professional should review the full assembly before installation.

The listed 4.5/26-17 tire weighs 11.8 pounds. That figure refers to the tire by itself, without the wheel.

Low tire weight can matter on a specialty front-runner application because it affects unsprung weight and the way the front end reacts. A lighter, narrower tire may suit a competition-focused setup, but weight should still be considered alongside wheel strength, construction type, and the intended use of the vehicle. When comparing options in this size, weight is best treated as one part of the overall setup rather than the only deciding factor.

The 4.5/26-17 is associated with drag racing, competition, and other specialty applications rather than normal passenger-car replacement service. Its narrow width and bias-ply construction point toward front-runner style use where packaging, weight, and race-oriented setup are more important than all-around road manners.

Fitment should be approached as a chassis-and-wheel question, not just a size-code question. Buyers should confirm wheel diameter, wheel width, front suspension clearance, and how the tire will sit in the wheel opening at full steering travel and full suspension movement. Because specialty tires often serve a very specific job, the right answer depends on the whole setup rather than the size alone.

No, matching the 17-inch diameter is only the first step. The 4.5/26-17 must go on the correct 17-inch wheel diameter, but wheel width, bead profile, and the intended use of the tire also matter.

This size is shown on a 4.00-inch rim width, which is a much narrower wheel than many modern 17-inch applications use. A wheel that is too wide can flatten the tire's profile and change how it seats and behaves. Buyers should also confirm brake clearance, steering clearance, and whether the wheel is appropriate for a specialty bias-ply tire before treating diameter alone as a fitment answer.

The 4.5/26-17 can make sense for a period-style racing build when the goal is a narrow bias-ply front-runner look and a setup that matches specialty or drag-oriented use. Bias-ply construction is often the more authentic choice when a build is meant to reflect older racing practice.

Appearance should still be balanced against practical fitment. Buyers should compare wheel width, front-end geometry, and available clearance before choosing this size for authenticity alone. A race-inspired stance can change quickly if the wheel is too wide or if the tire's narrow section width does not match the rest of the combination, so documentation and physical measurement remain important.

The 4.5/26-17 is a bias-ply specialty size, so it should not be expected to feel like a typical modern street radial. Its narrow profile and competition-oriented purpose usually place more emphasis on lightweight front-end packaging and race setup than on everyday comfort, noise control, or all-around road behavior.

Driving feel depends on the full combination of suspension condition, alignment, wheel width, tire age, and vehicle purpose. On a specialty build, steering response and straight-line behavior may differ noticeably from what a buyer expects from a regular highway tire. Anyone using this size should judge it in the context of a race-style setup rather than as a direct replacement for a mainstream street fitment.

Bias-ply construction changes how the 4.5/26-17 flexes and responds under load. Compared with a radial, a bias-ply tire typically has a different sidewall feel, a different steering character, and a stronger connection to vintage and specialty applications.

Construction choice is not just about appearance. A buyer should expect the tire's behavior to be influenced by front-end alignment, vehicle weight distribution, and the intended use of the car. On a competition-oriented vehicle, those traits may be exactly what the setup calls for, but on modern roads the experience can feel different from a street radial even when the size appears compact and simple.

Many buyers look at the 4.5/26-17 because its narrow 4.5-inch section width can help with front-end packaging on specialty and drag-oriented builds. A slim tire profile can reduce interference concerns around suspension and body components while contributing to a purposeful race-style appearance.

Clearance still has to be checked on the actual vehicle. Steering angle, brake components, spindle design, and wheel offset can all affect whether a narrow front tire really solves the problem. Stance is part of the decision as well, since a specialty front-runner look works best when the front wheel, tire, and overall chassis proportions are planned together rather than chosen one piece at a time.

The 4.5/26-17 is available from M&H Racemaster in the current product set. That makes the brand choice straightforward, but the more important question is whether the tire's construction and intended use match the vehicle and wheel setup.

When only a limited number of products exist in a specialty size, buyers should focus on details that matter more than brand count alone. Construction type, wheel compatibility, intended racing or specialty use, and consistency across the full tire set all deserve attention. A narrow competition-oriented size should be selected as part of the whole setup, not just by matching the size code.

Quality in the 4.5/26-17 size starts with correct sizing, consistent construction, and a tire that matches the job it is meant to do. Because this is a specialty bias-ply application, buyers should evaluate how accurately the tire suits the wheel width, vehicle layout, and intended use rather than expecting the same priorities as a general street tire.

A good buying decision also considers whether the full tire package is coherent. On a specialty vehicle, mismatched front and rear tire types or mixed design goals can create a setup that looks right but behaves inconsistently. Careful buyers compare construction, dimensions, and use case across the whole combination so the tire supports the build instead of fighting it.

Yes, sidewall style can matter, especially on a visible front-runner application. The 4.5/26-17 product shown uses a blackwall sidewall, which generally suits the clean, competition-focused look many specialty builds aim for.

Appearance should still come after fit and purpose. A sidewall style that matches the look of the vehicle is valuable, but not if the wheel width, construction type, or intended use are wrong for the setup. Buyers who care about a race-inspired presentation usually get the best result when the sidewall appearance, wheel choice, and tire proportions all support the same visual theme.

The 4.5/26-17 should be inspected for cracking, cuts, bulges, air loss, and uneven wear before every serious use. On a specialty bias-ply tire, condition matters as much as tread because age, storage, and limited-use patterns can affect serviceability even when the tire does not look heavily worn.

Race-oriented and collector-driven vehicles often spend more time parked than daily transportation, so a close visual check is worthwhile before every outing. Buyers should also inspect the wheel, valve area, and bead seating surfaces, especially if the assembly is often set up with a tube. If any part of the tire's condition is questionable, a qualified tire professional should evaluate it before the vehicle returns to service.

The 4.5/26-17 should be stored away from heat, direct sunlight, moisture, and ozone sources such as electric motors and battery chargers. Clean, dry storage helps slow the aging that can affect specialty and collector tires even when they are not accumulating many miles.

Long stationary periods can also contribute to flat spotting and gradual condition changes, so buyers should check the tire carefully before putting the vehicle back into use. A specialty bias-ply tire deserves the same attention as any other limited-use component on a race or collector vehicle. Proper storage supports longevity, but it does not replace regular inspection for age-related deterioration.

The 4.5/26-17 is commonly a tube-type fitment and is often set up with a tube, but the final answer depends on the full wheel-and-tire assembly. Tube use should always be confirmed against the actual wheel, tire, and mounting guidance being followed.

Wheel design, bead shape, valve arrangement, and intended use can all affect whether a tube belongs in the assembly. A buyer should avoid assuming that the size code alone settles the issue. When replacing an older setup or mixing new tires with existing wheels, it is wise to inspect the wheel condition carefully and have the combination reviewed by a tire professional familiar with specialty applications.

The 4.5/26-17 is primarily a specialty drag racing and competition-oriented size, so buyers should not treat it like a general-purpose street replacement by default. Road use decisions depend on the actual tire, current sidewall markings, wheel compatibility, vehicle setup, and the conditions in which the vehicle will be driven.

Anyone considering this size for use beyond controlled specialty applications should inspect the tire carefully and review the manufacturer's current guidance. Local requirements can also matter, especially when a tire was chosen mainly for a race-style build. A prudent buyer confirms the assembly's suitability for the intended use rather than assuming that any tire in this size belongs on every public-road setup.

The 4.5/26-17 should be replaced when age, cracking, bulges, cuts, persistent air loss, or other condition problems appear, even if the tread still looks usable. Specialty tires can age out before they wear out, especially when they spend time parked or stored between uses.

Visible tread depth alone is not enough to judge an older bias-ply tire. Heat cycles, storage environment, and the amount of time the vehicle sits can all affect service condition. Before any longer drive or event use, buyers should inspect the tire, wheel, and valve area closely. If the tire shows deterioration or its history is unclear, replacement is usually the safer course.

Buyers should verify the 17-inch wheel diameter first, then confirm wheel width, front-end clearance, and whether the tire and wheel combination is intended to use a tube. Because the 4.5/26-17 is a specialty bias-ply size, those checks matter more than simply matching the printed size code.

Vehicle use should guide the final decision as well. A tire chosen for a drag-oriented or show-oriented setup may not suit every driving condition a buyer has in mind. Review the tire's current sidewall markings, inspect the wheel condition, and compare the full assembly against the vehicle's actual requirements. When any part of the fitment or usage plan is uncertain, a qualified tire professional should be involved.