The 2009 BMW 750i belongs to a generation of full-size BMW sedans that blended luxury, technology, and strong road manners in a distinctly modern package. For tire selection, that matters because this car can appear with either an 18-inch square setup or a 19-inch staggered arrangement that uses different front and rear sizes. The primary fitments are all radial, with 245/50R18 for the Base model or 245/45R19 front and 275/40R19 rear for the 19-inch setup. Available choices range from blackwall performance radials to RWL and redline treatments in the 18-inch size. The right choice starts with confirming the wheel package already on the car and then matching the tire style to driving use and appearance goals.
Which Tire Size Is Right for The 2009 BMW 750i
The 2009 BMW 750i uses three primary tire sizes, and the correct one depends on whether the car has the 18-inch Base wheel setup or the 19-inch front and rear staggered arrangement. Before choosing a tire, confirm both the exact wheel diameter and whether the car uses the same size at all four corners or different front and rear fitments.
245/50R18 is a metric radial size in which 245 identifies the nominal section width in millimeters, 50 is the aspect ratio, R indicates radial construction, and 18 is the wheel diameter in inches. On the 2009 BMW 750i, this size serves the 18-inch Base fitment and keeps tire selection straightforward because all four corners use the same basic size. Available choices in this size include Pro-Trac Street Pro III tires with either RWL or redline sidewall styling. It is the right starting point when the car retains its 18-inch wheels and the goal is a square fitment with a more distinctive sidewall presentation.
245/45R19 is a metric radial size that combines a 245-millimeter section width with a 45-series profile on a 19-inch wheel. On the 2009 BMW 750i, this size is used at the front in the 19-inch staggered setup, so it should be treated as part of a matched front and rear combination rather than a universal size for every configuration. Product choices in this size include blackwall radials from BFGoodrich and Nitto across g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 lines. This is the size to evaluate when front-end fitment, wheel diameter, and the existing staggered arrangement have already been confirmed.
275/40R19 is a metric radial size in which 275 denotes a wider nominal section width, 40 is the aspect ratio, R marks radial construction, and 19 is the wheel diameter. On the 2009 BMW 750i, this is the rear tire size for the 19-inch staggered configuration, so it works in tandem with 245/45R19 front tires rather than as a stand-alone fitment across the entire car. Available options are blackwall performance radials from BFGoodrich and Nitto, including g-Force Sport Comp 2, g-Force Comp 2 AS, g-Force Phenom T/A, and NT555 G2 choices. It deserves close attention when replacing rear tires on a staggered car or restoring the intended front-to-rear width relationship.
Sub-model fitment on the 2009 BMW 750i varies by wheel setup, and that distinction matters before any tire is selected. One version uses a single 18-inch size, while the 19-inch arrangement separates front and rear fitment into two different radial sizes.
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2009 BMW 750i Base
The 2009 BMW 750i Base uses the 245/50R18 radial size on its 18-inch wheel setup. That makes tire selection simpler, with the main decision shifting to sidewall appearance and the specific tire line that suits how the car is driven and presented.
The 2009 BMW 750i Base Front uses 245/45R19 as the front tire size in the 19-inch configuration. Front tire replacement should stay coordinated with the rear size and with the existing wheel package so the staggered setup remains properly matched.
The 2009 BMW 750i Base Rear uses 275/40R19 at the rear in the 19-inch staggered arrangement. Rear tire selection should be made with the front 245/45R19 setup in mind, especially if the car has seen wheel or suspension changes over time.
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.
Best 2009 BMW 750i Tires for Sale
Available 2009 BMW 750i tires center on radial fitments in 18-inch and 19-inch sizes, with choices from Pro-Trac, BFGoodrich, and Nitto. Buyers can compare blackwall, RWL, and redline styles along with several performance-oriented tire series and size-specific rim-width details.
These FAQs focus on the exact tire sizes used on the 2009 BMW 750i, how the 18-inch and 19-inch setups differ, and what to check when comparing tire style, wheel fitment, and road-use condition.
Tire Size & Fitment
What tire size fits a 2009 BMW 750i?
A 2009 BMW 750i can use 245/50R18, 245/45R19, or 275/40R19, depending on the wheel setup. The 18-inch Base fitment uses 245/50R18, while the 19-inch arrangement uses a staggered combination with 245/45R19 in front and 275/40R19 in the rear.
The key is identifying which wheel package is actually on the car before ordering tires. An 18-inch square setup and a 19-inch staggered setup are not the same thing, even though the overall tire diameters stay very close. Checking the wheel diameter and whether the front and rear tire widths differ will prevent choosing the right size for the wrong configuration.
What size rim does a 2009 BMW 750i use?
The 2009 BMW 750i uses either 18-inch or 19-inch rims, depending on configuration. The 245/50R18 fitment is built for an 18-inch wheel, while the 245/45R19 front and 275/40R19 rear sizes are built for 19-inch wheels.
Rim diameter should be confirmed directly from the wheel before selecting a tire, especially on a luxury sedan that may have had wheel changes over time. A 19-inch tire will not mount correctly on an 18-inch wheel, and the staggered 19-inch arrangement also adds a front-to-rear width difference that needs to stay coordinated. Looking at both the tire sidewall and the wheel itself is the safest starting point.
Why does the 2009 BMW 750i have more than one tire size?
The 2009 BMW 750i has more than one tire size because it appears with two different wheel arrangements. One uses a single 245/50R18 size, while the other uses a staggered 19-inch setup with 245/45R19 front tires and wider 275/40R19 rear tires.
That means the first decision is not simply choosing a brand or tread style. It is confirming whether the car has the 18-inch square setup or the 19-inch staggered setup already in place. Once that is settled, tire shopping becomes much easier because the correct size path is clear and the remaining choices are product line, sidewall style, and road-use priorities.
Choosing the Right Tire
What should I consider when choosing a 2009 BMW 750i tire?
Start with the exact size and wheel configuration on the car, since the 2009 BMW 750i can use either 245/50R18 or a staggered 245/45R19 front and 275/40R19 rear setup. All of the primary fitments are radial, so the next decision is how the car is actually used and which product family matches that purpose.
After size is confirmed, compare details that meaningfully affect selection, including sidewall appearance, tire series, rim-width suitability where stated, and load information when it appears. A square 18-inch setup invites a different buying decision than a staggered 19-inch arrangement. Cars with aftermarket wheels or suspension changes deserve an extra look at clearance and wheel width before moving ahead.
What sidewall styles are available for 2009 BMW 750i tires?
Sidewall style depends on the tire size you need. In 245/50R18, available options include RWL and redline treatments from Pro-Trac, while the 19-inch sizes, 245/45R19 and 275/40R19, are represented by blackwall performance radials.
That difference makes appearance part of the buying decision, especially if the car runs the 18-inch setup. An owner looking for a more traditional or custom visual touch may focus on the 18-inch choices, while the 19-inch options lean toward a cleaner blackwall presentation. The best approach is to choose the sidewall style after the correct wheel diameter and tire size have already been verified.
What brands offer tires for the 2009 BMW 750i?
Available brands for the 2009 BMW 750i include Pro-Trac, BFGoodrich, and Nitto. Brand choice depends on the tire size, with Pro-Trac appearing in 245/50R18 and BFGoodrich and Nitto offering options in the 19-inch 245/45R19 and 275/40R19 sizes.
Brand alone should not drive the decision. It makes more sense to compare each brand within the correct size, sidewall style, and tire series that fit the wheel setup on the car. On a staggered 19-inch car, the front and rear tires also need to stay consistent with the intended fitment pattern, so the right brand choice begins with the right size choice.
Restoration & Appearance
How does tire construction affect the appearance of a 2009 BMW 750i?
The 2009 BMW 750i uses radial primary fitments, so construction changes are less about switching from vintage bias-ply style and more about the visual character of the tire itself. In practical terms, the biggest appearance differences here come from the tire series and sidewall treatment offered within the correct size.
A 245/50R18 setup gives access to RWL and redline styling, which creates a much different look than the blackwall 19-inch choices. That matters for owners shaping the car's presentation, whether it leans cleaner and more understated or more custom in feel. The visual result should still start with the proper size and wheel diameter rather than appearance alone.
Does correct tire fitment matter for a 2009 BMW 750i restoration or collector presentation?
Correct tire fitment matters because wheel diameter, tire width, and staggered versus square layout all influence how a 2009 BMW 750i sits and presents. A car on 245/50R18s gives a different visual impression than one on 245/45R19 front and 275/40R19 rear tires, even though both belong to the same model year.
For an appearance-focused project, the first goal is preserving the wheel and tire arrangement that suits the car's intended presentation. Sidewall style can refine that look, especially in the 18-inch size where more visual variation exists. When originality matters closely, period photos, marque references, and vehicle-specific ownership history are useful guides before making cosmetic tire changes.
Fitment, Maintenance & Road Use
Can modifications affect tire fitment on a 2009 BMW 750i?
Yes, modifications can affect tire fitment on a 2009 BMW 750i. Wheel changes, altered offsets, suspension lowering, and other chassis changes can influence whether 245/50R18 or the 245/45R19 and 275/40R19 staggered combination still has the same clearance and stance relationship the car had before.
That is especially important on the 19-inch setup, where front and rear tire widths are intentionally different. A car with aftermarket wheels should have wheel diameter, width, and tire clearance checked at both ends before replacement tires are chosen. Even when the sidewall shows a familiar size, the wheel underneath it may not match the original fitment assumptions.
What should I inspect before driving a 2009 BMW 750i on new tires?
Before driving a 2009 BMW 750i on new tires, inspect inflation pressure, wheel condition, valve stems, and the basic condition of the suspension and steering components. It also helps to confirm that the correct size is mounted at each position, especially if the car uses the 19-inch staggered front and rear arrangement.
A short initial road check can reveal vibration, rubbing, or steering pull that deserves attention before longer use. Looking at tread seating and sidewall clearance after the first few miles is also worthwhile. On a car that has sat for periods or changed hands several times, a careful inspection is just as important as the tire size itself.
How often should tires on a 2009 BMW 750i be inspected?
Tires on a 2009 BMW 750i should be inspected regularly, not just when tread looks worn. Pressure, tread wear pattern, sidewall condition, and any signs of cuts, bulges, or slow air loss deserve routine attention, particularly on a heavy luxury sedan that may be driven less often than an everyday commuter.
Monthly checks are a sensible habit, and the tires should also be looked over before any longer trip. A staggered 19-inch setup deserves special attention because front and rear tires are different sizes and may wear differently. Cars that spend long periods parked should also be watched for age-related deterioration and flat-spot behavior after storage.
