450-18 Firestone Classic Blackwall Motorcycle Tire
Firestone ANS Motorcycle tires were part of Firestone's "A Tire for Every Riding Condition" ad campaign in the 1940s. The All Non-Skid tire was an instant favorite, outperforming many competitors of that time. The Firestone ANS has become iconic on vintage motorcycles through the years, and has even become extremely popular for custom motorcycle builds more recently. Coker Tire Company proudly offers the legendary Firestone ANS Motorcycle tire in popular 16-, 18- and 19-inch sizes. The tires feature authentic tread design and sidewall markings.
Blackwall Tire
Since the introduction of carbon black rocked the tire industry, the original recipe for most tires has been a solid black sidewall. For classics and collector cars alike, it's hard to beat the no-nonsense appeal of a classic blackwall style tire. British sports car, classic truck and even hot rod enthusiasts love the way a nice period correct blackwall tire looks on their vehicles.
Bias Ply Construction
Bias ply tire construction is a method that was used from the 1900's through the 1970's on passenger cars and light trucks. Bias ply tires feature ply cords that run at a 45 degree angle to the bead, and overlap in a crisscross pattern, depending on how many ply layers are used. This creates a strong tire, but bias ply tires have a tendency to follow breaks or ruts in the pavement. Bias ply tires are the most authentic choice for classic car restorations and traditional hot rod builds. Coker Tire offers a huge variety of bias ply tires for many applications.
Firestone Classic Bias Ply Tires
Firestone Classic bias ply tires feature dozens of sizes and styles, making it one of the most popular authentic tire options for antique and classic cars, as well as hot rods and customs. You’ll find the Deluxe Champion and other models in this iconic product line.
Firestone Tires for Collector Vehicles
The vintage line of Firestone tires fits a wide range of cars, trucks and motorcycles built from the 1900's through the 1970's. Firestone Non Skid tires, Firestone Deluxe Champion tires, Firestone Wide Oval tires and many more famous styles and sizes are available to fit military vehicles, motorcycles and classic commercial trucks. With whitewalls, redlines, raised white letters and other classic sidewall styles, this product line is one of the most extensive and popular brands for classic cars.
Please Note
- Tire mounted on wheel for demonstration purposes only. Wheel and other accessories are not included. Please note that dimensions listed (tread width, section width and overall diameter) are non-scientific and based on an inflated tire, mounted to a wheel. Dimensions may vary due to rim width and inflation pressure.
| SKU | 73224 |
|---|---|
| Weight | 15.000000 |
| Brand | Firestone |
| Product Size | 450-18 |
| Tube Type or Tubeless | Tube Type |
| Rim Diameter | 18 inch |
| Tire Construction | Bias Ply |
| Tire Series | Firestone ANS |
| Sidewall Style | Blackwall |
| Motorcycle Sizes | 450-18 |
| GTIN | 00842199102581 |
| Section Width (IN) | 4.6 |
| Rim Width (in) | 2.15 |
| Overall Diameter (IN) | 27.3 |
| Availability Date | 2026-10-30T00:00:00Z |
450-18 Firestone Classic Blackwall Bias Ply Motorcycle Tire
Frequently Asked Questions
Fitment & Compatibility â–¼
The Firestone Motorcycle ANS | 450-18 is designed specifically for motorcycles with an 18-inch rim diameter. This bias ply tire will mount securely on rims measuring 18 inches, and its section width of 4.6 inches is compatible with a rim width of 2.15 inches as recommended by Coker Tire specifications. Ensure your motorcycle’s existing rims match these dimensions for optimal fitment and safety. Using a mismatched rim could compromise bead seating and tire performance.
Always verify that your motorcycle frame and fender clearances can accommodate the 27.3-inch overall diameter. Under suspension compression or when leaning into corners, the tire should not rub fenders or suspension components. Checking for proper clearance helps prevent handling issues and ensures safe highway use.
Yes, the Firestone Motorcycle ANS | 450-18 is popular for custom and vintage motorcycle builds due to its authentic tread and sidewall style. Builders often choose this tire for period-correct aesthetics while maintaining real-world rideability. Its bias ply construction provides the classic feel expected for vintage motorcycles.
However, when installing on modified motorcycles, consider wheel width compatibility, fender clearance, and suspension travel. Steering effort may increase slightly with wider setups or heavier wheel assemblies. Adjustments to fork angle, shock settings, and inflation pressure can help balance appearance with performance and maintain a safe contact patch.
The Firestone Motorcycle ANS | 450-18 can accommodate motorcycles with disc brake upgrades, provided there is sufficient clearance for calipers and rotors. Bias ply tires may exhibit minor flex under hard braking, so verifying rim and brake spacing is critical.
Checking the contact patch and tire deformation under braking ensures consistent grip and avoids rubbing. Riders should also confirm rim width compatibility, as the recommended 2.15-inch rim width supports standard load ratings, which helps maintain braking performance without excessive steering feedback or contact patch distortion.
Tire Size Equivalents & Conversions â–¼
The section width of the Firestone Motorcycle ANS | 450-18 is 4.6 inches. This measurement represents the width of the tire at its widest point when mounted on a properly sized rim, in this case, 2.15 inches. The section width impacts tire fitment, fender clearance, and contact patch size.
Section width also influences steering effort and handling behavior. A wider section may increase road grip but can require more input on tight maneuvers. Maintaining the recommended rim width ensures the tire preserves its intended stance and contact pattern for both vintage appearance and rideability.
The overall diameter of the Firestone Motorcycle ANS | 450-18 is 27.3 inches. This represents the total height of the tire from ground to tread top when mounted and inflated correctly. Overall diameter affects ride height, fender clearance, and suspension geometry.
A mismatch in overall diameter can change speedometer readings, cornering behavior, and handling feel. The 27.3-inch diameter maintains period-correct motorcycle stance while allowing predictable response in braking, acceleration, and highway cruising.
Performance & Use Case â–¼
The Firestone Motorcycle ANS | 450-18 is capable of highway speeds but retains classic bias ply feel. Sidewall flex results in a softer ride and slight steering feedback at sustained speed. Careful inflation and load management are essential to control heat buildup.
Riders should anticipate minor tracking deviations and slightly increased lean angle on rough pavement. With proper maintenance and correct rim width, the tire offers reliable highway performance while preserving vintage authenticity and contact patch integrity.
Yes, the Firestone Motorcycle ANS | 450-18 is highly regarded for period-correct appearance, making it ideal for show motorcycles. Authentic tread and blackwall sidewalls complement vintage or custom builds.
Maintaining correct rim width and inflation preserves stance and contact patch aesthetics. While optimized for style, the tire’s bias ply construction still allows safe street use, offering a balance between show-ready appearance and functional performance.
Corners produce a classic leaning feel due to the bias ply sidewall flex. Riders will notice minor follow-through in ruts or pavement imperfections, which is authentic to vintage designs.
This behavior requires slightly more input than modern radials, particularly at low speeds or with wider handlebars. Correct inflation and rim width maintain optimal contact patch and traction, allowing predictable cornering while preserving period-correct handling.
Construction, Durability & Load Capacity â–¼
The Firestone Motorcycle ANS | 450-18 is a bias ply tire. Its cord layers run at a 45-degree angle to the bead, overlapping in a crisscross pattern to create strong sidewall and tread integrity.
Bias ply construction provides authentic ride feel and period-correct appearance. The design influences sidewall flex, contact patch behavior, and heat distribution during highway use, giving the rider a classic leaning sensation and slightly increased steering effort compared to radials.
Durability is high when riding on standard roads at correct speeds. The 450-18 maintains tread integrity and predictable flex with proper inflation and load management.
Bias ply tires tend to wear evenly but are more sensitive to heat buildup on long highway trips. Maintaining recommended pressure, monitoring fender clearance, and avoiding overloading ensures longevity and consistent performance.
Installation & Maintenance â–¼
The Firestone Motorcycle ANS | 450-18 should be inflated according to manufacturer recommendations for your motorcycle model. Proper inflation ensures correct sidewall flex, contact patch behavior, and heat dissipation.
Underinflation increases flex, steering effort, and heat buildup, while overinflation reduces grip and comfort. Regularly check pressure before long rides and after mounting, particularly on custom or restored motorcycles.
The Firestone Motorcycle ANS | 450-18 is a tube-type tire. It requires an inner tube to be mounted safely, even on tubeless-capable rims. Using a tube ensures proper bead sealing, contact patch behavior, and predictable handling.
Do not attempt to run this tire tubeless, as improper installation can lead to bead failure or loss of pressure. Ensure inner tube compatibility with rim width and overall tire diameter.
Mounting torque should follow your motorcycle manufacturer’s specifications for wheel installation. Proper torque ensures even seating, bead integrity, and alignment.
Evenly tightening lug nuts or axle bolts prevents wobble, preserves contact patch uniformity, and avoids sidewall stress. Using correct torque is especially important on bias ply tires with flexible sidewalls to maintain safe handling characteristics.
Visual inspection should occur before each ride or at least weekly during active use. Check for tread wear, sidewall cracks, or heat-induced deformation.
Pay attention to rim edge and bead area for tube integrity. Proper inflation and load management preserve tread life. Early detection of wear prevents handling issues and maintains safe highway performance while preserving vintage authenticity.
New bias ply tires, including the Firestone Motorcycle ANS | 450-18, benefit from a short break-in period of 50–100 miles. This allows sidewalls and tread to seat properly.
During break-in, expect slightly softer handling and increased steering feedback. Avoid aggressive cornering or hard braking to ensure uniform wear and predictable contact patch engagement. Correct inflation should be maintained throughout.








