The 2021 Chrysler 300 carried one of the last full-size American sedan formulas into the modern era, pairing a long-wheelbase rear-drive platform with a formal profile that still appeals to drivers who want presence as much as transportation. That matters when tire selection enters the picture, because this model uses four different radial sizes depending on trim and drivetrain, from 17-inch through 20-inch fitments. The biggest concentration of product choice sits around 245/45R20, where brand, series, and sidewall treatment can noticeably change the car’s presentation. The right starting point is confirming the exact sub-model and wheel setup before comparing appearance, road use, and replacement priorities.
Which Tire Size Is Right for The 2021 Chrysler 300
The 2021 Chrysler 300 uses four primary tire sizes, and the correct one depends on sub-model and wheel diameter. All of these are radial fitments, but they span 17-inch, 18-inch, 19-inch, and 20-inch rims, so confirming the exact trim, drivetrain, and actual wheels on the car comes first. Once that is settled, the decision shifts to choosing the right tire within that size based on brand, series, sidewall style, and intended use.
Fit(s): S (RWD), Touring (RWD), and Touring L (RWD)
Construction: Radial|Rim: 20 in
245/45R20 is a metric radial size with a 245-millimeter section width, a 45-series aspect ratio, radial construction, and a 20-inch rim diameter. On the 2021 Chrysler 300, this size belongs with 20-inch wheel applications and gives the car a lower-profile modern look than the taller sidewall sizes used elsewhere in the lineup. Available choices include BFGoodrich, Nitto, and Pro-Trac options, with Blackwall, Redline, and RWL sidewall treatments across series such as g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, Street Pro III, and NT555 G2. It is the size to evaluate when the car already has the 20-inch setup and appearance is part of the decision.
235/55R19 is a metric radial size that uses a 235-millimeter section width, a 55-series profile, and a 19-inch rim. This fitment is tied to specific 19-inch wheel applications on the 2021 Chrysler 300, making wheel confirmation more important than comparing it loosely to the other sizes used on the same model line. Its taller sidewall profile sits between the lower-profile 20-inch tire and the more generous sidewall of the 17-inch fitment. Buyers looking at this size should stay focused on preserving the proper 19-inch fitment and then compare tire design, driving priorities, and overall presentation within that correct size.
215/65R17 is a metric radial size with a 215-millimeter section width, a 65-series aspect ratio, and a 17-inch rim diameter. Within the 2021 Chrysler 300 range, this size belongs to 17-inch wheel applications and carries the tallest sidewall profile of the primary fitments used here. That gives it a very different fitment context from the 18-, 19-, and 20-inch sizes, even though all are modern radial tires for the same model family. The key reason to focus on this size is straightforward fitment accuracy: if the car is on 17-inch wheels, this is the type of size interpretation that matters before any brand or tread-style comparison begins.
225/60R18 is a metric radial size that combines a 225-millimeter section width, a 60-series profile, and an 18-inch rim diameter. On the 2021 Chrysler 300, it serves 18-inch wheel applications and lands between the taller 17-inch fitment and the lower-profile 19- and 20-inch choices in overall visual character. Because this model can appear with several wheel diameters depending on sub-model, the practical job here is not guessing from appearance alone but verifying that the car actually has the 18-inch setup. Once that is confirmed, tire selection becomes a matter of choosing the right radial in the correct size rather than cross-shopping other primary fitments.
Tire fitment varies across the 2021 Chrysler 300 lineup, so the exact sub-model matters before selecting a replacement. Some versions use a single size, while certain RWD trims can appear with more than one wheel and tire package, making wheel-diameter confirmation especially important.
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2021 Chrysler 300 S (RWD)
The 2021 Chrysler 300 S (RWD) uses the 245/45R20 radial fitment, placing it with the 20-inch wheel setup. That makes tire choice less about sorting through multiple primary sizes and more about comparing the available 20-inch product options, including differences in series and sidewall presentation.
The 2021 Chrysler 300 Touring (AWD) uses the 235/55R19 radial size on a 19-inch wheel. For this sub-model, the priority is keeping the 19-inch fitment straight and checking the actual wheel setup on the car before considering any replacement tire.
The 2021 Chrysler 300 Touring (RWD) can use 215/65R17, 225/60R18, or 245/45R20, depending on the wheel package on the car. Tire selection here starts with confirming the existing rim diameter, because the right replacement depends on whether the car is on 17-, 18-, or 20-inch wheels.
The 2021 Chrysler 300 Touring L (AWD) uses the 235/55R19 radial fitment. That keeps the decision centered on finding the right 19-inch tire rather than sorting through multiple primary sizes, though checking that the car still has its matching wheel setup remains important.
The 2021 Chrysler 300 Touring L (RWD) can use either 225/60R18 or 245/45R20, depending on wheel configuration. Because this sub-model spans two rim diameters, verifying whether the car has 18-inch or 20-inch wheels is the first step before comparing tire choices.
The tire sizes listed on this page assume factory-standard vehicle configuration. The following modifications may affect tire fitment and are not reflected in this guide:
Suspension changes (lowering, lift kits, spring replacements)
Body alterations (fender modifications, custom bodywork)
If your vehicle has been modified from factory specifications, verify tire clearance before purchase.
Best 2021 Chrysler 300 Tires for Sale
Available 245/45R20 choices for the 2021 Chrysler 300 include BFGoodrich, Nitto, and Pro-Trac radial tires across several series. The product grid is most useful for comparing Blackwall, Redline, and RWL sidewall styles, along with rim-width specifications and other tire-character differences within the 20-inch fitment.
These FAQs focus on 2021 Chrysler 300 tire size differences by trim, wheel-diameter fitment, available 245/45R20 product choices, and the checks that matter before road use or after wheel and suspension changes.
Tire Size & Fitment
What tire size fits a 2021 Chrysler 300?
The 2021 Chrysler 300 uses four primary tire sizes: 215/65R17, 225/60R18, 235/55R19, and 245/45R20. All are radial sizes, and the correct one depends on the exact sub-model, drivetrain, and wheel package rather than the model name alone.
The most important step is confirming the wheel diameter already on the car, because this model spans 17-inch through 20-inch rims. A Touring RWD or Touring L RWD may appear with more than one factory-style wheel and tire combination, so checking the tire sidewall and the wheel itself helps prevent ordering the wrong size.
What size rim does a 2021 Chrysler 300 use?
A 2021 Chrysler 300 can use 17-inch, 18-inch, 19-inch, or 20-inch rims, depending on sub-model and wheel package. Those rim diameters correspond to 215/65R17, 225/60R18, 235/55R19, and 245/45R20 tire sizes.
Rim diameter is the first fitment detail to verify because the tire must match it exactly. A 20-inch tire cannot be mounted on an 18-inch wheel, and the same model line uses several diameters, so it is smart to confirm the actual wheel on the car instead of relying only on trim name or appearance.
Why does the 2021 Chrysler 300 have more than one tire size?
The 2021 Chrysler 300 has more than one tire size because tire fitment changes with trim, drivetrain, and wheel package. Some sub-models use a single size, while Touring RWD and Touring L RWD can appear with multiple wheel diameters and their matching radial tires.
That means replacement selection starts with the exact configuration on the car, not with a broad assumption about all 300 sedans. Checking the current tire sidewall, wheel diameter, and any changes made by a previous owner helps narrow the fitment quickly and keeps the comparison focused on the proper size.
Choosing the Right Tire
What should I consider when choosing a 245/45R20 tire for a 2021 Chrysler 300?
Start with fitment accuracy: 245/45R20 belongs on 20-inch wheel applications for the 2021 Chrysler 300. From there, compare radial construction details such as rim-width compatibility, load information where stated, tire series, and whether the car is being kept close to its current appearance or given a more customized look.
This size offers several different product personalities, so the choice is less about whether 245/45R20 fits and more about which version suits the car. A buyer may prefer a straightforward Blackwall performance look, or may want a Redline or RWL sidewall to change the visual character without moving away from the same basic size.
What sidewall styles are available for 2021 Chrysler 300 tires?
Within the available 245/45R20 options for the 2021 Chrysler 300, sidewall styles include Blackwall, Redline, and RWL. Those choices keep the same basic tire size but can change the car’s appearance quite a bit, especially on a sedan with a strong wheel-and-tire visual presence.
Blackwall works for a more understated modern presentation, while Redline and raised white letter styling give the car a more assertive custom or muscle-inspired look. Sidewall treatment should be considered after the correct size and wheel diameter are confirmed, since appearance options only matter once the tire is properly matched to the car’s setup.
What brands offer tires for the 2021 Chrysler 300?
Available 245/45R20 tires for the 2021 Chrysler 300 include products from BFGoodrich, Nitto, and Pro-Trac. Those brands cover several series, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, NT555 G2, and Street Pro III.
Brand choice should be treated as one part of the selection process rather than the only decision. It is more useful to compare the exact tire series, sidewall style, and wheel-compatibility details within the correct size, because two tires from different brands may serve very different appearance and road-use goals on the same 300.
Restoration & Appearance
Which tire should I choose for a period-style 2021 Chrysler 300?
A period-style approach on a 2021 Chrysler 300 still starts with the correct modern radial size for the exact trim and wheel package. For 20-inch applications, the visual direction can then shift through available tire series and sidewall treatments without changing away from the proper 245/45R20 fitment.
Because this is a modern sedan rather than an earlier collector car, the appearance decision usually centers on whether the car should look clean and contemporary or lean into a more customized stance. Redline or RWL sidewalls can change that presentation, while Blackwall keeps the look closer to current factory-era styling cues.
How does tire construction affect the appearance of a restored 2021 Chrysler 300?
Tire construction is straightforward on the 2021 Chrysler 300 because its primary fitments are modern radials. That means the appearance change comes less from switching between bias-ply and radial construction and more from choosing the correct profile, wheel diameter, sidewall treatment, and tire series within the proper size.
A lower-profile 20-inch fitment presents the car differently than a taller 17-inch or 18-inch setup, even before brand differences are considered. For a restoration-oriented or preservation-minded car, matching the tire to the existing wheel package usually does more for authenticity of overall presentation than chasing a style that belongs to another trim.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2021 Chrysler 300?
Yes. Wheel swaps, suspension changes, lowering, spacer use, or body modifications can all affect tire fitment on a 2021 Chrysler 300, even when the tire size is one used somewhere in the model range. A size that suits one wheel and suspension setup may not suit another altered configuration.
The smart approach is to confirm actual wheel diameter and width, then check steering clearance, fender clearance, and suspension travel on the car as it sits now. That matters especially on a 300 because factory-type fitments already span several diameters, so modified cars should not be evaluated by trim name alone.
What should I inspect before driving a 2021 Chrysler 300 on new tires?
Before road use, inspect basic wheel-and-tire condition along with the match between the tire size and the car’s actual rims. Look for proper inflation, secure lug hardware, even seating on the wheel, and any signs of shipping damage, cuts, bulges, or obvious interference near the fenders or suspension.
A short initial drive followed by a recheck is a practical habit, especially if the car has aftermarket wheels or recently changed suspension parts. It also helps to verify that the front tires clear during full steering travel and that the rear tires have room under load, since appearance-oriented wheel packages can tighten clearances.
How often should tires on a 2021 Chrysler 300 be inspected?
Tires on a 2021 Chrysler 300 should be inspected regularly, not only when tread looks worn. Monthly pressure checks are a sensible baseline, and a closer inspection for uneven wear, cracking, punctures, and sidewall damage should be part of routine ownership, especially before highway trips or after any impact.
Cars that sit for long periods still need attention because low use does not prevent aging or air loss. It is also worth checking alignment-related wear if one edge is scrubbing faster than the rest, since the correct tire size alone will not solve issues caused by suspension wear or improper wheel settings.
