The 1981 Mazda Trucks B2000 sits in the era when compact pickups had become everyday work vehicles while still keeping the light, direct feel that made Japanese mini-trucks so appealing. Whether kept as a simple driver, a restored survivor, or a period-style custom, tire choice has a big effect on how the truck looks and presents itself. The 1981 Mazda Trucks B2000 uses three 14-inch fitment paths: 195R14 radial, 6.00-14 bias-ply, and ER70-14 radial. That creates a meaningful choice between traditional bias-ply sizing and radial options, including bias-look radial styling in ER70-14. The right direction depends on your exact wheel setup, the appearance you want, and how closely you want to stay with a vintage presentation.
Which Tire Size Is Right for The 1981 Mazda Trucks B2000
Three primary tire sizes are used on the 1981 Mazda Trucks B2000, and all of them fit 14-inch rims. Because the Base, Sundowner, and Sundowner Sport can all use these sizes, the real decision is less about trim level and more about construction type, tire profile, and the look you want. Start by confirming the truck's current wheel setup, then choose between the traditional 6.00-14 bias-ply route or one of the radial alternatives.
195R14 is a Euro-metric radial size in which 195 refers to the nominal section width in millimeters, R indicates radial construction, and 14 identifies the wheel diameter in inches. On a 1981 Mazda Trucks B2000, this format represents a more modern radial sizing convention while still keeping the truck on a 14-inch rim. It is useful for owners who want a radial tire in a size that suits the truck's compact-pickup character. Before selecting it, confirm that the actual wheel width and overall tire dimensions suit the truck's current stance and clearance.
6.00-14 is a numeric bias-ply size, with 6.00 identifying the nominal section width in inches and 14 indicating the rim diameter. This is the most traditional-looking fitment path for the 1981 Mazda Trucks B2000 and is the choice that most strongly preserves a vintage truck tire presentation. Bias-ply construction also carries a distinctly period-style appearance that matters to restoration-minded owners. It makes sense when the goal is to keep the truck visually closer to an earlier tire style, provided the wheel and intended road use match that direction.
ER70-14 is an alphanumeric radial size in which the letter code identifies the tire's size class, the 70 denotes its profile family, and the 14 is the rim diameter. For the 1981 Mazda Trucks B2000, this size adds another radial option while keeping a strong vintage look, especially because available choices come in Firestone Wide Oval Radial form with either Redline or raised white letter sidewalls. That makes it especially appealing when appearance matters as much as fitment. It is worth considering if you want radial construction with a more overt period-style tire presentation.
Fitment is straightforward across the covered 1981 Mazda Trucks B2000 sub-models because the same three 14-inch tire sizes appear throughout the range. Checking the sub-model still matters, but the bigger factor is confirming which wheel and tire setup is actually on the truck today.
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1981 Mazda Trucks B2000 Base
The 1981 Mazda Trucks B2000 Base can use 195R14 radial, 6.00-14 bias-ply, or ER70-14 radial tires on 14-inch rims. That gives the Base owner room to choose between a more traditional bias-ply presentation and radial alternatives that can shift the truck's appearance and overall tire character.
The 1981 Mazda Trucks B2000 Sundowner shares the same three-size fitment path as the rest of the B2000 lineup, all built around 14-inch wheels. Tire selection comes down to the truck's present wheel setup and whether the goal is a vintage bias-ply look or a radial option with a period-style profile.
The 1981 Mazda Trucks B2000 Sundowner Sport also uses the same 14-inch fitment choices: 195R14, 6.00-14, and ER70-14. For this sub-model, the key decision is choosing the construction and sidewall presentation that best match the truck's intended look, rather than searching for a unique size.
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 1981 Mazda Trucks B2000 Tires for Sale
Available ER70-14 choices focus on Firestone's Wide Oval Radial line, with two distinct sidewall presentations: Redline and RWL. Both are bias-look radial tires, so the product grid is especially useful for buyers comparing vintage-style appearance within the same size.
Common questions for the 1981 Mazda Trucks B2000 usually center on its three 14-inch tire sizes, the difference between bias-ply and radial fitments, and how to choose the right look for a stock-style or period-inspired truck.
Tire Size & Fitment
What tire size fits a 1981 Mazda Trucks B2000?
The 1981 Mazda Trucks B2000 uses three primary tire sizes: 195R14, 6.00-14, and ER70-14. Those sizes represent two different construction paths, with 6.00-14 in bias-ply form and 195R14 and ER70-14 in radial form, all built for 14-inch rims.
The practical next step is confirming which wheel and tire setup is actually on the truck now. Many older pickups have been changed over the years, so wheel width, tire clearance, and the appearance you want should all be checked before choosing among these three sizes.
What size rim does a 1981 Mazda Trucks B2000 use?
The tire sizes used on the 1981 Mazda Trucks B2000 are all built around a 14-inch rim diameter. That includes 195R14, 6.00-14, and ER70-14, so the wheel diameter remains consistent even though the sizing systems and tire constructions differ.
Rim diameter is only part of the fitment picture on an older truck. The wheel's actual width still matters, especially when comparing bias-ply and radial designs, so it is worth verifying the stamped wheel size or measuring the wheel before settling on a new set of tires.
Do all 1981 Mazda Trucks B2000 sub-models use the same tire size?
Yes. The Base, Sundowner, and Sundowner Sport all share the same three tire-size paths: 195R14, 6.00-14, and ER70-14. That means the sub-model itself does not force a unique tire size choice within the covered 1981 Mazda Trucks B2000 range.
What matters more is whether the truck still has its expected 14-inch wheels and whether it is set up for a bias-ply or radial presentation. A truck that has been modified, restored, or changed over time may no longer match its original-looking wheel and tire combination, so a physical check is worthwhile.
Bias-Ply & Radial Options
Is 6.00-14 a bias-ply or radial tire for the 1981 Mazda Trucks B2000?
On the 1981 Mazda Trucks B2000, 6.00-14 is a bias-ply tire size. It uses a vintage numeric sizing format and represents the most traditional construction path among the truck's primary fitments, compared with the radial alternatives 195R14 and ER70-14.
That matters because construction affects both appearance and the feel of the truck's setup. Choosing 6.00-14 usually points toward a more vintage presentation, while a move to one of the radial sizes changes the tire format as well as the overall character, so wheel compatibility and the intended style should be considered together.
Should I use bias-ply or radial tires on a 1981 Mazda Trucks B2000?
Either can make sense, because the 1981 Mazda Trucks B2000 has both bias-ply and radial primary fitments. A 6.00-14 bias-ply suits owners who want a more traditional vintage-truck look, while 195R14 and ER70-14 offer radial alternatives in the same 14-inch wheel diameter.
The choice should follow the truck's current wheels, the look you want, and how closely you want to stay with an older tire style. It is smart to verify wheel width, general tire dimensions, and clearance before switching constructions, especially if the truck has already been modified from stock form.
Can I use an ER70-14 radial on a 1981 Mazda Trucks B2000?
Yes, ER70-14 is one of the primary radial tire sizes used on the 1981 Mazda Trucks B2000. In the available product range, it appears as a Firestone Wide Oval Radial with bias-look styling, offered with either Redline or raised white letter sidewall treatments.
That makes ER70-14 especially interesting for owners who want radial construction without giving up a strong vintage visual statement. Even so, the truck's actual wheel setup should still be checked carefully, since matching the 14-inch rim diameter alone does not answer every fitment question on an older pickup.
Choosing the Right Tire
What should I consider when choosing a tire for a 1981 Mazda Trucks B2000?
Start with the correct primary size for the truck's current setup: 195R14, 6.00-14, or ER70-14. From there, the main factors are construction type, whether you want a more traditional bias-ply look or a radial alternative, and how the tire's profile suits the truck's intended appearance.
Wheel compatibility should be checked before making the final call, especially on an older pickup that may have replacement wheels. It also helps to think about how the truck will be used, since a restoration-oriented build and a casual road-going driver may point you toward different tire styles.
What sidewall styles are available for 1981 Mazda Trucks B2000 tires?
In ER70-14, the available sidewall styles include Redline and RWL, which means raised white letter. Both are offered in Firestone Wide Oval Radial form, giving the 1981 Mazda Trucks B2000 two distinctly different period-style visual directions within the same radial size.
Sidewall choice mainly affects the truck's presentation rather than its base fitment. A Redline treatment creates a cleaner vintage performance look, while RWL gives the tire a more assertive late-classic appearance, so the better choice depends on the truck's paint, trim, and restoration style.
What brands offer tires for the 1981 Mazda Trucks B2000?
Firestone is available for the 1981 Mazda Trucks B2000 in ER70-14 through the Wide Oval Radial series. That product path is offered with two sidewall treatments, so the brand choice in the current assortment is tied closely to appearance rather than a long list of competing manufacturers.
When comparing available tires, it helps to look beyond brand name alone. Tire size, construction, sidewall style, and how well the tire suits the truck's wheel setup are the bigger decision points, especially when the goal is to achieve a certain period-style look on a compact pickup.
Which tire should I choose for a period-style 1981 Mazda Trucks B2000?
A period-style 1981 Mazda Trucks B2000 can reasonably go in more than one direction. The 6.00-14 bias-ply size gives the most traditional presentation, while ER70-14 offers a vintage-inspired radial approach with Firestone Wide Oval Radial styling and sidewall choices such as Redline or RWL.
The better choice depends on whether the truck is being restored with a stock-leaning appearance or built with a more customized early-1980s flavor. For exact originality, it is smart to compare the truck against marque references, photos, and vehicle-specific documentation before choosing a sidewall treatment or construction type.
How does tire construction affect the appearance of a restored 1981 Mazda Trucks B2000?
Construction changes the visual character of the truck more than many owners expect. A 6.00-14 bias-ply gives the 1981 Mazda Trucks B2000 a more traditional vintage-truck stance, while radial sizes such as 195R14 or ER70-14 shift the look toward a later, more modernized presentation.
That difference becomes even more noticeable when sidewall styling is involved. An ER70-14 Firestone Wide Oval Radial with Redline or RWL creates a strong period-inspired custom feel, so the right choice comes down to whether the restoration goal is restrained, sporty, or more overtly era-specific.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 1981 Mazda Trucks B2000?
Yes. Even though the 1981 Mazda Trucks B2000 uses 14-inch tire sizes, fitment can change if the truck has aftermarket wheels, altered wheel width, suspension changes, or body modifications. Those changes can affect how a 195R14, 6.00-14, or ER70-14 sits in the wheel opening.
A close inspection helps prevent surprises after installation. Check steering clearance, fender clearance, and the relationship between the tire and suspension components, especially on a lowered or customized truck, because an older mini-truck may no longer match its original wheel and tire layout.
What should I inspect before driving a 1981 Mazda Trucks B2000 on new tires?
Before road use, inspect the wheels for correct diameter and general condition, and make sure the tires are mounted in the intended size and construction for the truck. It also helps to check valve stems, confirm proper inflation, and look over suspension and steering parts for looseness or visible wear.
A short, careful test drive is a good way to catch rubbing, pull, vibration, or clearance issues early. On an older pickup, problems blamed on tires can sometimes come from worn front-end parts, brake drag, or old wheels, so the entire setup deserves a quick review.
How should tires on a collector 1981 Mazda Trucks B2000 be maintained?
Collector-truck tires should be checked regularly for air loss, uneven wear, cracking, bulges, and cuts, even if the 1981 Mazda Trucks B2000 is only driven occasionally. Low-use vehicles often age their tires through time and storage conditions rather than through heavy mileage alone.
Good storage habits make a difference. Keeping the truck away from prolonged sunlight, excess heat, moisture, and ozone sources helps preserve tire condition, and regular pressure checks are important because a compact pickup that sits for long stretches can develop avoidable flat-spotting or sidewall stress.
