2020 Dodge Tire Fitment Guide

2020 Dodge vehicles use nine sizes across Challenger and Charger models: 235/55R19, 245/45R20, 275/40R20, 305/35R20, 315/40R18, 235/55R18, 225/60R18, 245/55R18, and 215/65R17. Challenger uses 235/55R19, 245/45R20, 275/40R20, 305/35R20, 315/40R18, and 235/55R18. Charger uses 245/45R20, 225/60R18, 245/55R18, 305/35R20, 235/55R19, 215/65R17, and 275/40R20. Rim diameters span 17, 18, 19, and 20 inches, with published rim-width guidance appearing on some 18- and 20-inch products.

That means year and make alone are not enough to choose correctly. A 2020 Dodge buyer should first identify whether the car is a Challenger or Charger, then confirm the wheel diameter already on the vehicle and the exact size on the tire placard or existing tires. Shared sizes such as 245/45R20, 275/40R20, 305/35R20, and 235/55R19 can cross between both model lines, while the remaining sizes are model-specific.

On a 2020 Dodge, 245/45R20 is a metric radial size. The 245 is the nominal section width in millimeters, 45 is the aspect ratio, R identifies radial construction, and 20 is the wheel diameter in inches. That size appears on both Challenger and Charger models. Available versions include Blackwall radials from BFGoodrich and Nitto, with W and Y speed ratings depending on the product chosen.

The practical takeaway is that the code tells you both the tire’s general proportions and the wheel diameter it must fit. Even when two tires share the same size code, brand-to-brand details such as speed symbol, load rating, and approved rim-width range can differ. For a 2020 Dodge running 245/45R20, confirm the application matches your wheel package and then compare the individual products within that size rather than assuming every 245/45R20 is identical.

No. The 2020 Dodge range splits tire sizes between Challenger and Charger, although four sizes are shared by both models: 235/55R19, 245/45R20, 275/40R20, and 305/35R20. Challenger alone adds 315/40R18 and 235/55R18, while Charger alone uses 225/60R18, 245/55R18, and 215/65R17. Every size in this year-and-make group is a radial, but wheel diameters still vary significantly from one application to another.

That model split matters because a Charger owner cannot assume a Challenger fitment applies, and vice versa. Dodge used different wheel-and-tire packages to support different trims, ride qualities, and performance levels. If you are replacing one tire, match the exact size already fitted unless you are intentionally changing the full package. If you are restoring or personalizing the car, start with the model page and then check the wheel diameter before comparing products.

2020 Dodge tire choices include more than one sidewall style, depending on size. Blackwall is the dominant look across 245/45R20, 275/40R20, and many 305/35R20 and 315/40R18 options. RWL appears in 305/35R20 and 315/40R18, while Redline appears in 315/40R18 and 245/55R18. Those non-blackwall styles bring a stronger custom or retro-performance visual effect than the cleaner late-model appearance of a plain blackwall.

For most factory-style 2020 Dodge appearances, Blackwall will look the most natural. Redline and RWL choices make more sense when the goal is a personalized muscle-car look rather than strict late-model OEM appearance. Because sidewall style is tied to specific sizes and product lines, choose your size and wheel package first, then decide whether you want the tire to blend in visually or become a styling feature of the car.

BFGoodrich, Nitto, M&H Racemaster, and Pro-Trac cover the current 2020 Dodge applications that have product selection here. BFGoodrich appears in 245/45R20, 275/40R20, 305/35R20, and 245/55R18. Nitto appears in 245/45R20, 275/40R20, 305/35R20, and 315/40R18. M&H Racemaster appears in 275/40R20 and 305/35R20, while Pro-Trac appears in 305/35R20 and 315/40R18.

Brand choice should follow the role of the car, not just the badge on the sidewall. Some products lean toward mainstream street performance, while others are more specialty-oriented in appearance or intended use. A 2020 Dodge owner comparing brands should stay within the correct size first, then look at speed symbol, sidewall style, and any approved rim-width guidance. That approach is more useful than trying to pick a brand before narrowing the fitment.

In 315/40R18 for 2020 Dodge Challenger applications, Nitto NT555 G2 and Pro-Trac Street Pro III differ in both presentation and published technical detail. The Nitto comes in Blackwall form, carries a ZR designation, weighs 35 pounds, and includes a rim-width range of 10.5 to 12.5 inches plus a max load figure of 1,874 pounds at 44 psi. Pro-Trac Street Pro III appears in Redline and RWL styles and weighs 35.05 pounds, but no rim-width or load figure is paired with those versions here.

That makes the choice partly technical and partly visual. A buyer who wants a contemporary blackwall performance radial with more published specification detail may lean toward the Nitto. A buyer chasing a custom sidewall look on a wide 18-inch Challenger setup may prefer Pro-Trac’s Redline or RWL appearance. Either way, confirm the wheel width before ordering, because 315-section tires are far less forgiving of wheel mismatch than narrower sizes.

Published rim-width guidance varies by size and product on 2020 Dodge applications. For 245/45R20, BFGoodrich products call for 7.5 to 9.0 inches, and a similar 7.5 to 9 inch range appears on another BFGoodrich version of the same size. For 275/40R20, one BFGoodrich option calls for 9.00 to 9.50 inches while another spans 9.0 to 11.0 inches, and M&H Racemaster shows a 9-inch fitment. For 305/35R20, M&H Racemaster uses 11 inches and BFGoodrich spans 10.0 to 12.0 inches. Nitto’s 315/40R18 uses 10.5 to 12.5 inches.

Those differences matter because approved wheel width is product-specific, not just size-specific. Two tires with the same nominal size can have different intended wheel ranges depending on casing design and product mission. Before choosing a 2020 Dodge tire, measure the actual wheel or confirm the factory wheel specification for your trim. That is especially important with wider 20-inch and 18-inch sizes, where wheel mismatch can affect appearance, clearance, and tread behavior.

2020 Dodge applications here are radial sizes, and tube designation varies by product rather than staying uniform across every option. One 305/35R20 BFGoodrich tire is explicitly marked TL for tubeless service, while many other products simply present a size and speed symbol without a tube marking in the visible description. No tube-type marking appears in the products shown for these late-model fitments. That points buyers toward modern tubeless use, but the exact service type still needs to be confirmed on the specific tire selected.

The safest approach is to check the sidewall marking on the exact product and make sure the wheel itself is suitable for the intended service. On a 2020 Dodge, original late-model wheels are generally associated with tubeless radial use, but the product should always match the wheel and valve-stem setup. If you are dealing with an aftermarket wheel package, confirm the wheel condition and sealing surfaces at the same time rather than treating tube use as an afterthought.

A 2020 Dodge stored with the tires fitted should be kept in a cool, dry, dark space away from direct sunlight, electric motors, battery chargers, welders, and other ozone-producing equipment. Clean tires and wheels before storage, keep the car off damp ground, and maintain proper inflation throughout the lay-up period. Radial tires generally tolerate storage better than older bias-ply designs, but they can still develop temporary flat spotting and sidewall aging if the car sits for long periods without movement.

For a seasonal Challenger or Charger, move the car periodically so the tires are not loaded in one spot for months at a time. If the storage period will be extended, some owners use tire cradles or support the vehicle in a way that reduces static load, while following safe lifting practices. A breathable indoor cover helps the car overall, but tire preservation still depends most on stable temperature, ozone control, and avoiding prolonged exposure to UV light.

On a 2020 Dodge that sees collector-style or occasional use, tire age usually matters more than tread depth alone. A practical rule is to begin evaluating tires closely once they reach about five to seven years of age and to treat around ten years as a strong replacement point even if the tread still looks usable. The DOT date code on the sidewall is the best guide to actual tire age, since low-mileage cars can wear very little while still aging out.

Performance-oriented 20-inch tires can also age differently from comfort-oriented sizes because heat cycles, storage habits, and alignment all influence service life. A Challenger or Charger that is driven hard may need replacement sooner, while a garage-kept cruiser may appear healthy longer than it actually is. When judging whether to keep an older set, focus on age, cracking, hardening, and air retention rather than assuming low annual mileage means the tires are still fit for use.

Tires on a 2020 Dodge should be inspected before every drive and again before any longer trip. Look for sidewall cracking, punctures, cuts, bulges, uneven wear, and anything embedded in the tread. Check inflation pressure with the tires cold and make sure each tire is holding pressure consistently. Wider rear fitments such as 305/35R20 or 315/40R18 deserve extra attention because wheel damage, curb contact, or alignment changes may be less obvious at a glance.

A quick inspection catches problems that are easy to miss on a car that is not driven daily. Performance cars can hide inner-edge wear, and low-use vehicles can lose air or age in place without obvious tread wear. If your 2020 Dodge uses an aftermarket wheel-and-tire package, inspect wheel lips, valve stems, and fender clearance at the same time. A five-minute check before leaving the garage is far easier than dealing with a preventable failure on the road.

The 2020 Dodge Challenger was originally a modern radial-tire car, not a bias-ply-era vehicle. Across the Challenger range here, the factory-style size family includes 235/55R19, 245/45R20, 275/40R20, 305/35R20, 315/40R18, and 235/55R18 depending on trim and wheel package. That means original-style fitment is less about choosing between vintage constructions and more about matching the exact size, wheel diameter, and overall visual character that belonged on your specific version of the car.

Authenticity for a 2020 Dodge Challenger usually comes down to retaining the right modern wheel-and-tire combination for the trim level, rather than chasing an antique-style tire look. If the car is being preserved as-delivered, compare the current setup to the door placard, window sticker, or build information. If you are uncertain about a special package or wheel option, a Dodge marque community or factory literature is the best way to verify the exact original tire sizing.

Yes, correct tire fitment matters on a 2020 Dodge when the goal is an authentic show presentation. Judges and knowledgeable enthusiasts will notice if the car wears the wrong wheel diameter, an obviously incorrect section width, or a sidewall treatment that does not match the period and presentation you are aiming for. On a late-model performance car, authenticity is usually judged through overall correctness of stance, tire proportion, and trim-appropriate appearance rather than through antique construction details.

That does not mean every show car must wear the same style tire. A custom-oriented build may intentionally use Redline or RWL sidewalls, while a stock-appearing car will usually look more correct on Blackwalls in the proper size. The key is consistency with the theme of the vehicle. If the car is being prepared for marque judging, confirm the expected wheel-and-tire combination for your exact Challenger or Charger configuration before making cosmetic tire changes.

For 2020 Dodge applications in 275/40R20, BFGoodrich offers both g-Force Comp 2 A/S and g-Force Sport Comp 2. The g-Force Sport Comp 2 carries a 106W XL marking, a max load figure of 2,094 pounds at 50 psi, and a published rim-width range of 9.00 to 9.50 inches. The g-Force Comp 2 A/S carries a 106Y XL marking and uses a broader 9.0 to 11.0 inch rim-width range. Both are Blackwall radials, but they are not identical in speed symbol or wheel-width spread.

That difference matters for both appearance and setup flexibility. A 2020 Dodge owner trying to match an existing wheel width may find one tire aligns more neatly with the wheel already on the car. The speed symbol difference also separates the two products in terms of stated capability, with W rated to 112 mph and Y to 186-plus mph. Confirm how your car is equipped and used before choosing between them rather than selecting only by tread pattern or brand familiarity.

Yes, 2020 Dodge tires in these sizes are highway-capable when they are the correct size, in good condition, and used within their ratings. Several 20-inch products carry W or Y speed ratings, with W rated to 112 mph and Y rated to 186-plus mph, while the 315/40R18 Nitto carries a ZR designation associated with 149-plus mph capability. Those ratings sit well above normal U.S. highway speeds. For real-world driving, overall tire condition and the car’s alignment, brakes, suspension, and maintenance status are often more important than the upper speed symbol itself.

The practical question is not whether the size is inherently safe, but whether the exact tire on the exact car is the right one and is still healthy. A properly inflated 245/45R20 or 275/40R20 in good condition is well suited to normal road use. A specialty rear tire may call for more careful application matching. Before any sustained highway trip in a 2020 Dodge, confirm age, pressure, visible condition, and that front and rear sizes are appropriate for the wheel package in use.

Inflation pressure for a 2020 Dodge should start with the factory vehicle placard or owner’s manual, because pressure is tied to the exact model, wheel package, and axle load. Tire maximum figures are not the same thing as recommended running pressure, but they still provide useful service limits on some sizes here. Examples include 245/45R20 at 1,930 pounds at 50 psi, 275/40R20 at 2,094 pounds at 50 psi, and 315/40R18 at 1,874 pounds at 44 psi on certain products.

Use those numbers as product ceilings, not as a blanket pressure setting. A Charger on 17- or 18-inch wheels may call for a different operating pressure than a Challenger on staggered 20-inch performance tires, even when both are road cars from the same year. Check pressures cold, keep them consistent across the axle as required by the vehicle, and do not transfer a pressure assumption from one size to another. The correct size-and-vehicle pairing always comes first.

Before a longer drive in a 2020 Dodge, inspect every tire for cracking, cuts, bulges, punctures, unusual wear, and correct cold inflation pressure. Look closely at the inner shoulders on wide modern sizes, since alignment wear can hide there. Check valve stems, wheel condition, and the spare if the car still carries one. If the car uses staggered or especially wide rear fitments such as 305/35R20 or 315/40R18, verify there is no rubbing and that left and right tires match the intended setup.

Tire checks should be part of a larger road-trip routine on any performance-oriented modern muscle car. Wheel torque, fluid condition, brakes, suspension behavior, and battery health matter just as much once the trip becomes more than a short local outing. The goal is to confirm that the tire package and the car are ready together. A 2020 Dodge that has sat for a while deserves an especially careful once-over before it returns to sustained highway use.