Kumho T121 Spare Tire Tire (Donut)
Be ready for the unexpected with a compact temporary spare tire, or donut. This space-saving emergency tire and wheel arrives mounted and ready to install, so you can leave the shoulder and get to a repair shop quickly. It is built for short-distance use and pairs a durable casing with a directional tread for predictable braking. Inflate to the specified psi, select the correct size and bolt pattern, and drive with care.
Why Choose Kumho T121 Spare Tire (Donut)
A temporary spare tire delivers immediate mobility after a flat without the bulk of a full-size spare. Its compact profile frees trunk space and trims weight. Pre-mounted tire and wheel assemblies speed up roadside changes, while the high-pressure casing and directional tread help the car track straight and brake predictably in dry or wet conditions. Designed for short-distance, reduced-speed use, a donut spare limits damage to your primary wheel and tire and gets you to a service bay for a proper repair or replacement.
Fitment and Sizes: Find the Right Temporary Spare
Correct fitment is essential. Match overall diameter closely to your original tire so ABS, traction control, and the drivetrain behave as expected. Verify bolt pattern, center bore, offset, and brake caliper clearance, and make sure the spare's load rating meets your vehicle's spec. Most temporary spares use higher inflation pressure, often around 60 psi, so follow the sidewall and your owner's manual, and use our size chart to cross-reference your OE tire size and pick the right temporary spare tire and wheel assembly.
Temporary Spare Tire Size Chart
To use the size chart, start with your OE tire size from the driver-door jamb label, for example 205/55R16. Find the closest compatible temporary spare diameter in the chart, then confirm the matching bolt pattern and center bore. Keep overall diameter variance small to limit speedometer error and drivetrain stress. If your vehicle has larger brakes, confirm caliper clearance, and if you are unsure, consult your owner's manual or contact our fitment team with your exact year, make, model, and trim for a verified match.
Installation and Safe Use
Park on level ground, set the parking brake, and place the vehicle in Park. Loosen the lug nuts slightly, jack the vehicle at the designated lift point, remove the flat, then mount the temporary spare and hand tighten the nuts in a star pattern. Lower the vehicle and torque the lug nuts to spec, then confirm the donut spare is at its required pressure and stow the flat securely. Drive gently, avoid hard braking or sharp cornering, and head straight to a tire shop for a repair or replacement.
Speed and Distance Limits
Temporary spares are built for limited distance and reduced speed. Most automakers recommend about 50 mph and roughly 50 miles, though some list a higher absolute maximum. Always follow the speed and mileage printed on the spare's sidewall and in your owner's manual. Prolonged use can overheat the tire, degrade handling and braking, and add stress to drivetrain components, so replace or repair the full-size tire as soon as you can.
Temporary Spare vs Full-Size Spare
A temporary spare prioritizes compact size and low weight, which makes it easy to store and lift during roadside changes. It is ideal for short trips to a repair facility. A full-size spare matches your regular tires for diameter, speed rating, and load, so you can drive normally until replacement, but it takes more trunk space and adds weight. If cargo room and weight savings matter, a donut spare is practical, while frequent long-distance or remote travel favors a full-size spare.
Price and Where to Buy a Kumho T121 Temporary Spare
Temporary spare tire and wheel assemblies typically range from about 50 to 200 dollars or more, depending on size, construction, and brand. Before buying, confirm compatibility with our size chart and fitment checks, including bolt pattern, center bore, and brake clearance. If you need a donut spare with rim, choose a pre-mounted assembly for the fastest roadside swap. Complete your purchase online for quick shipping, and verify pressure and load rating on the sidewall or contact our team for help finding the right spare tire for your car.
Care, Storage, and Replacement
Check your temporary spare's pressure monthly, since most require higher psi than standard tires and underinflation can compromise stability. Inspect the tread and sidewalls for cracks, cuts, or dry rot, especially if the spare has been stored for years. Store it in a cool, dry place away from direct sunlight and chemicals. Many manufacturers advise replacing temporary spares based on age and condition, often around 6 to 10 years even if unused, and after any use, inspect for damage and replace rather than repair if compromised.
