The 2001 Land Rover Trucks Discovery sits in the later years of the Discovery Series II, a period when Land Rover blended traditional four-wheel-drive character with more modern comfort and road manners. Owners often keep these trucks in service as weekend explorers, collector SUVs, or well-preserved drivers, so tire choice affects both appearance and usability. For this exact model year, the primary fitment centers on two radial sizes, 255/65R16 and 255/55R18, with wheel diameter being the first thing to confirm. Because both sizes have nearly the same overall diameter, the real decision usually comes down to the truck’s wheel setup, intended use, and whether originality or a later wheel package matters more.
Which Tire Size Is Right for The 2001 Land Rover Trucks Discovery
The 2001 Land Rover Trucks Discovery uses two primary tire sizes, and the difference comes down first to wheel diameter. Both 255/65R16 and 255/55R18 are radial metric sizes, and their overall diameters are very close, so identifying whether the truck is on 16-inch or 18-inch wheels is the key first step before comparing tire options.
Fit(s): Series II LE, Series II SD, and Series II SE
Construction: Radial|Rim: 18 in
255/55R18 is a metric radial size in which 255 is the section width in millimeters, 55 is the aspect ratio, R identifies radial construction, and 18 is the wheel diameter in inches. On the 2001 Land Rover Trucks Discovery, this size suits trucks equipped with 18-inch wheels while keeping an overall diameter close to the alternate 16-inch fitment. That makes it a wheel-package decision rather than a dramatic height change. Use this size when the truck already has the correct 18-inch rims and clearance remains consistent with the current setup.
Fit(s): Series II LE, Series II SD, and Series II SE
Construction: Radial|Rim: 16 in
255/65R16 is also a metric radial size, with the same 255-millimeter section width but a taller 65-series profile mounted on a 16-inch wheel. For the 2001 Land Rover Trucks Discovery, it serves the configurations running 16-inch rims and preserves nearly the same overall tire diameter as the 18-inch alternative. That keeps the fitment conversation focused on wheel diameter and sidewall profile rather than major dimensional change. Choose this size only after confirming the truck is using the proper 16-inch wheels and has not been changed to a different wheel package.
Fitment is straightforward across the covered 2001 Discovery Series II sub-models because each one can use the same two radial tire sizes. The important step is not trim identification so much as confirming whether the truck is currently fitted with 16-inch or 18-inch wheels.
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2001 Land Rover Trucks Discovery Series II LE
The 2001 Land Rover Trucks Discovery Series II LE can use either of the two primary radial sizes used across this model range. Tire selection starts with verifying the wheel diameter on the truck, then choosing the size that matches that wheel setup and the desired sidewall profile.
The 2001 Land Rover Trucks Discovery Series II SD shares the same basic tire-fitment pattern as the other covered sub-models, with both primary radial sizes in play. That means the practical decision is confirming whether the truck wears 16-inch or 18-inch wheels before selecting replacement tires.
The 2001 Land Rover Trucks Discovery Series II SE also uses the same pair of radial tire sizes found elsewhere in the range. For replacement planning, the useful check is the actual wheel package on the vehicle, since that determines whether the 16-inch or 18-inch size is appropriate.
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.
Frequently Asked Questions
Common questions for the 2001 Land Rover Trucks Discovery usually center on choosing between the two metric radial sizes, confirming wheel diameter, and checking how wheel changes or long-stored-vehicle conditions can affect safe road use.
Tire Size & Fitment
What tire size fits a 2001 Land Rover Trucks Discovery?
The 2001 Land Rover Trucks Discovery uses two primary tire sizes: 255/55R18 and 255/65R16. Both are radial metric sizes, and both were used across the covered Discovery Series II LE, SD, and SE sub-models rather than being limited to one trim alone.
The important difference is wheel diameter. A truck on 18-inch wheels needs 255/55R18, while a truck on 16-inch wheels needs 255/65R16. Since many Discovery models may have changed wheels over time, the smartest first check is the actual wheel size on the vehicle now, not just the trim badge.
What size rim does a 2001 Land Rover Trucks Discovery use?
A 2001 Land Rover Trucks Discovery can use either a 16-inch rim or an 18-inch rim, depending on which of the two primary tire sizes is on the truck. The 255/65R16 size uses a 16-inch wheel, and the 255/55R18 size uses an 18-inch wheel.
That makes rim diameter the key fitment point before ordering tires. A quick visual check of the wheel, the existing tire sidewall, or the wheel markings can prevent a mismatch. Even though the two tire sizes are close in overall diameter, they are not interchangeable across different wheel diameters.
Do all 2001 Land Rover Trucks Discovery sub-models use the same tire size?
The covered 2001 Land Rover Trucks Discovery Series II LE, Series II SD, and Series II SE sub-models all share the same two primary tire sizes: 255/55R18 and 255/65R16. In other words, sub-model alone does not narrow the choice down to just one size.
What matters more is the wheel package actually on the truck. If a Discovery has been kept original, the current wheel diameter will usually guide the correct replacement size. If wheels have been changed at any point, confirm the rim diameter and tire markings directly before choosing a replacement.
Choosing the Right Tire
What should I consider when choosing a tire for a 2001 Land Rover Trucks Discovery?
Start with the correct primary size for the wheel diameter on the truck: 255/65R16 for a 16-inch wheel or 255/55R18 for an 18-inch wheel. Both are radial metric sizes with very similar overall diameter, so the main selection issue is matching the tire to the existing wheel setup.
After size, think about how the Discovery will be used. A truck kept close to its original configuration calls for staying with the established size and wheel package, while a vehicle with changed wheels needs a careful look at clearance, suspension condition, and the way the tire sits on the rim.
How do I choose between 255/55R18 and 255/65R16 for a 2001 Land Rover Trucks Discovery?
Choose between 255/55R18 and 255/65R16 by the wheel diameter already on the vehicle. The 255/55R18 belongs on an 18-inch wheel, and the 255/65R16 belongs on a 16-inch wheel. Both sizes keep the Discovery in a very similar overall tire height range.
The practical difference is sidewall profile and wheel package, not a dramatic change in diameter. Trucks with 16-inch wheels use the taller-profile tire, while 18-inch-wheel trucks use the lower-profile option. Confirming the actual rim size is more important here than trim level, since all covered sub-models can use either fitment.
Why does the 2001 Land Rover Trucks Discovery have more than one tire size?
The 2001 Land Rover Trucks Discovery has more than one tire size because it was fitted with more than one wheel diameter. Both 255/65R16 and 255/55R18 are primary radial fitments, and they maintain nearly the same overall tire diameter while pairing with different rims.
That means the second number in the size is not the whole story. One size uses a taller sidewall on a smaller wheel, and the other uses a shorter sidewall on a larger wheel. Replacement selection should follow the wheel currently on the truck rather than assuming every Discovery of this year uses one universal setup.
Restoration & Appearance
Which tire should I choose for a period-style 2001 Land Rover Trucks Discovery?
A period-style 2001 Land Rover Trucks Discovery is best approached by keeping the truck in the primary tire size that matches its existing wheel diameter. That means 255/65R16 on 16-inch wheels or 255/55R18 on 18-inch wheels, depending on the wheel package the vehicle carries.
On a restoration-minded or preservation-focused Discovery, keeping the proper wheel-and-tire relationship usually matters more than chasing a different size with a similar diameter. If originality is especially important, compare the truck’s present wheels and historical vehicle records so the replacement tire supports the right overall stance and presentation.
Does correct tire fitment matter for a 2001 Land Rover Trucks Discovery restoration?
Correct tire fitment matters because the 2001 Land Rover Trucks Discovery uses two legitimate primary sizes tied to two different wheel diameters. Choosing the wrong size can change the truck’s visual balance, sidewall profile, and the way the tire sits on the wheel, even if the overall diameter looks close on paper.
For a restoration or well-kept original example, matching the tire to the proper wheel setup helps preserve the Discovery’s intended look. It also reduces the chance of clearance or compatibility issues caused by forcing the wrong tire onto the wrong rim diameter, which is a much bigger concern than trim-level differences here.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2001 Land Rover Trucks Discovery?
Yes. Modifications can affect tire fitment on a 2001 Land Rover Trucks Discovery, especially when they involve aftermarket wheels, suspension changes, altered ride height, or body and steering components. Even with the correct primary size, those changes can influence how much room the tire has during turns and suspension movement.
A Discovery that has been lifted, lowered, or fitted with non-stock wheels should be checked more carefully than one on its original setup. Wheel diameter is only the starting point. Rim width, wheel offset, and available clearance at the fender, suspension, and steering stops all deserve a closer look before road use.
What should I inspect before driving a 2001 Land Rover Trucks Discovery on new tires?
Before driving a 2001 Land Rover Trucks Discovery on new tires, inspect the wheel diameter, wheel condition, and the installed tire size to confirm the truck is using either 255/65R16 on 16-inch wheels or 255/55R18 on 18-inch wheels. Also look over valve stems, lug hardware, and basic tire pressure condition.
It also helps to check for rubbing at full steering lock and to make sure suspension and steering components are in sound condition. On an older SUV that may sit between outings, a short local test drive is a sensible way to confirm tracking, clearance, and air retention before taking the vehicle on a longer trip.
What should I check before a longer drive in a 2001 Land Rover Trucks Discovery?
Before a longer drive, confirm that the 2001 Land Rover Trucks Discovery is on the correct tire size for its wheels and inspect each tire for cracking, cuts, bulges, uneven wear, and air loss. Collector and low-use vehicles can look fine at a glance while still having age-related issues that deserve closer attention.
A longer trip also calls for checking spare-tire condition, lug tightness, and general steering and suspension health. The Discovery’s two valid tire sizes are close in overall height, but that does not replace a proper inspection. Consistent pressure, sound sidewalls, and clean clearance through the full steering range matter just as much.
