The 2006 Infiniti Trucks FX35 sits in the early wave of performance-oriented luxury crossovers, blending sport-sedan attitude with SUV ride height and a distinctly aggressive stance. Buyers still gravitate to it because tire choice has a visible effect on both appearance and the way the vehicle feels on the road. This exact FX35 uses radial tires in two primary sizes, 265/50R20 and 265/60R18, so the first step is confirming which wheel diameter is on the vehicle. Once that is settled, the decision shifts toward maintaining the intended profile and road manners. That matters even more on examples that have seen wheel changes, suspension modifications, or years of collector-style use.
Which Tire Size Is Right for The 2006 Infiniti Trucks FX35
Two tire sizes apply to the 2006 Infiniti Trucks FX35, and the key difference is wheel diameter rather than tire construction, since both are radial fitments. Both the AWD and RWD versions can use either 265/50R20 or 265/60R18, so the first thing to confirm is whether the vehicle is currently on 20-inch or 18-inch wheels before choosing a replacement tire.
A 265/50R20 tire uses a 265-millimeter nominal section width, a 50-series aspect ratio, radial construction, and fits a 20-inch wheel. On the 2006 Infiniti Trucks FX35, this size supports the larger-wheel setup while keeping the same basic modern radial construction used across the vehicle's primary fitments. The shorter sidewall gives this size a distinctly contemporary performance-crossover look compared with the 18-inch alternative. It is the size to evaluate when the FX35 already wears 20-inch wheels and you want to preserve the existing wheel-and-tire proportion rather than changing the vehicle's setup.
A 265/60R18 tire also has a 265-millimeter nominal section width, but its 60-series profile places more sidewall between the wheel and the road, and it fits an 18-inch rim. This is still a radial fitment for the 2006 Infiniti Trucks FX35, but it is tied to the smaller wheel diameter used on some vehicles in this model line. Its overall dimensions stay very close to the 20-inch option, while the appearance and wheel requirement are different. Choose this size only after confirming that the FX35 has 18-inch wheels, since wheel diameter determines whether it is the correct fitment path.
Tire fitment is straightforward across the covered 2006 Infiniti Trucks FX35 sub-models because both AWD and RWD versions use the same two radial tire sizes. The important check is not drivetrain, but whether the vehicle is equipped with 18-inch or 20-inch wheels.
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2006 Infiniti Trucks FX35 (AWD)
The 2006 Infiniti Trucks FX35 AWD can use either of the two primary radial tire sizes offered for this model year, depending on the wheel diameter installed on the vehicle. Tire selection starts with confirming whether the AWD FX35 has 18-inch or 20-inch wheels, then choosing a replacement that preserves that setup.
The 2006 Infiniti Trucks FX35 RWD shares the same tire-fitment pattern as the AWD version, with both primary sizes tied to wheel diameter rather than drivetrain. The practical decision is to verify the current wheel size first, especially if the FX35 has ever been modified or fitted with non-original wheels.
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 2006 Infiniti Trucks FX35 tire questions usually come down to size selection, 18-inch versus 20-inch wheel fitment, and what to inspect before replacing tires on a used or modified crossover.
Tire Size & Fitment
What tire size fits a 2006 Infiniti Trucks FX35?
The 2006 Infiniti Trucks FX35 uses two primary tire sizes: 265/50R20 and 265/60R18. Both are radial tires, and both the AWD and RWD versions can use either size depending on which wheel diameter is installed on the vehicle.
The important distinction is that these are not interchangeable wheel sizes. A 265/50R20 belongs on a 20-inch rim, while a 265/60R18 belongs on an 18-inch rim. Before ordering tires, check the actual wheel diameter on the vehicle rather than assuming the drivetrain determines the fitment.
What size rim does a 2006 Infiniti Trucks FX35 use?
A 2006 Infiniti Trucks FX35 can use either an 18-inch rim or a 20-inch rim, depending on which of its two primary tire sizes is on the vehicle. The 265/60R18 size fits an 18-inch wheel, and the 265/50R20 size fits a 20-inch wheel.
That means rim diameter has to be confirmed before choosing tires. Looking at the sidewall code on the current tire is usually the quickest check, but it is also worth verifying the wheel itself if the FX35 has had aftermarket wheels installed. Tire size follows wheel diameter first, then the rest of the fitment decision.
Do all 2006 Infiniti Trucks FX35 sub-models use the same tire size?
The AWD and RWD versions of the 2006 Infiniti Trucks FX35 share the same two primary tire sizes: 265/50R20 and 265/60R18. In other words, sub-model fitment stays consistent across drivetrain, and the main difference comes from wheel diameter rather than from AWD versus RWD.
That makes the selection process simpler, but it does not remove the need to inspect the vehicle. An FX35 may be wearing its original wheel size, or it may have been changed over the years. Matching the replacement tire to the wheel currently on the vehicle is more important than relying on drivetrain alone.
Choosing the Right Tire
What should I consider when choosing a 265/50R20 tire for a 2006 Infiniti Trucks FX35?
Start by confirming that the 2006 Infiniti Trucks FX35 actually has 20-inch wheels, since 265/50R20 is tied to that rim diameter. This size combines a 265-millimeter width with a lower 50-series profile, so it preserves the larger-wheel look and the basic proportions intended for that setup.
Beyond size, compare the tire's intended use, load capability, and overall design for the way the FX35 is driven. A vehicle that has aftermarket wheels, altered ride height, or suspension wear should be checked carefully for clearance and stance before replacement. Keeping the existing wheel-and-tire relationship consistent usually leads to the cleanest fitment result.
What should I consider when choosing a 265/60R18 tire for a 2006 Infiniti Trucks FX35?
A 265/60R18 tire is the correct path only when the 2006 Infiniti Trucks FX35 is on 18-inch wheels. It uses the same nominal width as the 20-inch fitment, but the taller 60-series sidewall changes the wheel-to-tire proportion and keeps the tire matched to the smaller rim diameter.
Selection should focus on preserving that 18-inch setup rather than trying to compare it loosely with the 20-inch option. Check the wheel size on the vehicle, inspect for any prior modifications, and make sure the replacement tire suits the FX35's actual use. Consistency matters more than choosing by appearance alone.
How do I choose between the available tire sizes for a 2006 Infiniti Trucks FX35?
Choosing between 265/50R20 and 265/60R18 is really a matter of matching the tire to the wheel already on the 2006 Infiniti Trucks FX35. Both are proper radial fitments for this model, and both appear on AWD and RWD versions, so wheel diameter is the deciding factor.
Do not select between them as if they were cosmetic alternatives for the same rim. The 20-inch size belongs to a 20-inch wheel, and the 18-inch size belongs to an 18-inch wheel. On a used FX35, verify the current wheel setup carefully, especially if previous owners changed wheels, tires, or suspension components.
Restoration & Appearance
Does correct tire fitment matter for a 2006 Infiniti Trucks FX35 restoration?
Yes, correct tire fitment still matters on a 2006 Infiniti Trucks FX35, even though it is newer than a traditional collector car. The vehicle's stance, wheel proportion, and overall presentation change noticeably depending on whether it is on 265/50R20 or 265/60R18, so the wheel-and-tire pairing should match the intended setup.
For a restoration-minded project, preserving the proper wheel diameter is just as important as choosing the correct tire size. Buyers aiming for an authentic period presentation should compare the current configuration to vehicle-specific reference material, photos, or marque knowledge before making appearance-driven changes that alter the FX35's original character.
How does tire size affect the appearance of a 2006 Infiniti Trucks FX35?
Tire size affects the look of a 2006 Infiniti Trucks FX35 because the two primary fitments pair the same nominal width with different wheel diameters and sidewall proportions. A 265/50R20 creates a larger-wheel, lower-profile appearance, while a 265/60R18 gives the vehicle a fuller sidewall around an 18-inch rim.
That visual difference is one reason it is worth matching replacements to the existing wheel setup instead of choosing by size alone. Appearance-minded owners should also inspect ride height and wheel style before making changes, since those details can influence whether the FX35 keeps a balanced, period-appropriate stance.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2006 Infiniti Trucks FX35?
Yes, modifications can affect tire fitment on a 2006 Infiniti Trucks FX35 even when the tire size itself is one of the correct primary options. Aftermarket wheels, changes in wheel width or offset, suspension lowering, or body alterations can all change clearance at the fender, suspension, or steering components.
That is why the current setup deserves a close look before replacing tires. A modified FX35 may still use 265/50R20 or 265/60R18, but the surrounding hardware can change how that size behaves in real use. Checking wheel specifications and turning clearance helps prevent fitment surprises after installation.
What should I inspect before driving a 2006 Infiniti Trucks FX35 on new tires?
Before putting a 2006 Infiniti Trucks FX35 into regular road use on new tires, inspect the wheels, valve stems, and overall condition of the suspension and steering components. It is also smart to confirm that all four tires match the intended size and that inflation is set appropriately for the installed tires.
A road test should include attention to vibration, pulling, rubbing, and any contact at full steering lock. Older crossovers can hide worn bushings, alignment issues, or prior curb damage that only becomes obvious after new tires are fitted. Catching those issues early helps the new set wear more evenly and perform as expected.
How often should tires on a 2006 Infiniti Trucks FX35 be inspected?
Tires on a 2006 Infiniti Trucks FX35 should be inspected regularly, not just when tread looks low. Routine checks should include air pressure, visible tread wear, cuts, bulges, sidewall cracking, and any signs that one tire is wearing differently from the others.
That habit is especially important on a vehicle that sees seasonal use or long periods parked. Even if the size is correct, age, storage conditions, and alignment problems can affect roadworthiness. Frequent inspections make it easier to catch air loss, uneven wear, or clearance issues before they turn into a larger fitment or safety concern.
