Motorcycle enthusiasts are always looking for ways to improve performance, whether through engine modifications, aerodynamics, or even unconventional choices like using car tires instead of traditional motorcycle tires.
According to a study by The Sam Bernstein Law Firm, car tires are designed to support vehicles weighing between 3,000 to 4,000 pounds, whereas motorcycles typically weigh 300 to 500 pounds. This significant difference in weight distribution raises concerns about how car tires handle the unique demands of motorcycles.
But does this practice actually enhance a bike’s performance, or is it a risky gamble? Let’s explore the debate.
The concept of “darksiding”
The practice of using car tires on motorcycles is known as “darksiding”. Some riders swear by it, claiming that car tires offer better longevity, cost savings, and even improved stability in certain conditions. Others argue that motorcycle tires are specifically designed for two-wheeled vehicles and that using car tires compromises handling and safety.
The advantages of car tires on motorcycles
Cost savings
One of the biggest reasons riders consider car tires is the price. Car tires are often cheaper than motorcycle tires, making them an attractive option for budget-conscious riders. According to J.D. Power, darksiders believe that motorcycle companies manufacture their tires to wear out faster, forcing riders to replace them more frequently.
Longevity
Car tires tend to last longer than motorcycle tires. Some riders report getting significantly more mileage out of a car tire compared to a traditional motorcycle tire. A rider using a Honda Goldwing claimed to have achieved over 30,000 miles on a car tire at a fraction of the cost of motorcycle tires, as noted by Road Dirt.
Stability and Traction
Car tires have a wider contact patch, which can provide better grip on wet or slippery roads. Some riders believe this enhances stability, especially for touring motorcycles. However, this advantage is mostly noticeable when riding in a straight line rather than leaning into turns.
The downsides of using car tires
Handling Issues
Motorcycles are designed to lean into turns, and motorcycle tires have a rounded profile to accommodate this movement. Car tires, on the other hand, have a flat profile, which can make cornering more difficult and unpredictable. As The Sam Bernstein Law Firm explains, motorcycles are engineered with specific tire characteristics to optimize handling and manoeuvrability.
Safety concerns
Manufacturers design motorcycles with specific tire specifications to ensure optimal performance and safety. Using a car tire can alter the bike’s handling characteristics, potentially leading to dangerous situations. According to J.D. Power, altering the intended tire design can impact the overall riding safety of the motorcycle.
Manufacturer warnings
Major motorcycle manufacturers, including Honda and Gold Wing, advise against using car tires on motorcycles. They emphasize that their bikes are engineered with specific tire requirements that should not be altered. Riders are encouraged to check their owner’s manual for approved tire specifications.
While some riders swear by car tires for their motorcycles, the general consensus among experts is that motorcycle tires are the safest and most effective option.
The potential risks, especially in terms of handling and safety often outweigh the benefits. If you’re considering darksiding, it’s crucial to do thorough research and consult experienced riders before making the switch.
Would you take the risk, or do you prefer to stick with traditional motorcycle tires?
