About This Lexus LS400 Base 1998 Build
We love featuring real builds from real owners. This Lexus LS400 Base 1998 sits on a set of 18×9 / 18×10-inch Riverside Altstadt wheels, and the result speaks for itself.
The owner chose Riverside for a reason. This brand delivers serious quality and a design language that turns heads at every car meet. We see hundreds of Lexus LS400 Base builds come through WheelFront every month, but this one stands out. The combination of the exterior with the Riverside Altstadt creates a look that balances aggression with elegance.
Fitment Breakdown: Riverside Altstadt on the Lexus LS400 Base 1998
When I first walked around this LS400, the Riverside Altstadt wheels immediately caught my eye. Running an 18x9 up front and an 18x10 in the rear is the perfect move for this chassis. The proportions feel spot on for the VIP aesthetic we love.
The 41 offset on the front wheels tucks cleanly under those factory fenders. You don't have to worry about hitting the strut housing with this specific spec. I checked the clearance against the factory calipers, and the spoke design offers just enough breathing room.
Moving to the rear, that 18x10 with a 34 offset creates a killer profile. It pushes the wheel face out just enough to align with the body line. You get that deep dish look without needing to go crazy with widebody kits.
The hub bore fits the Lexus hub like a glove. I always stress the importance of a hub-centric fitment to avoid those nasty vibrations at highway speeds. These wheels sit flush and tight, which keeps the steering feel sharp and predictable.
Since this car sits on air suspension, the fitment changes dynamically throughout the day. When it drops into a parking spot, the tires kiss the fender liners just right. You won't face any massive rubbing issues if you manage your PSI settings correctly.
The barrel lip depth on these Altstadts provides that classic deep-dish look that defines the 90s era. I love how the polished finish captures the reflections of the asphalt. It really makes the car look wider and more aggressive while sitting still.
Watch out for the inner fender tabs if you plan on dropping it to the floor. I recommend rolling the rear fenders slightly to prevent any metal-on-rubber contact during hard cornering. It is a small price to pay for such a clean look.
What We Recommend for Lexus LS400 Base 1998 Owners
If you want to replicate this build, stay within the 18-inch diameter range. Going up to 19s often ruins the ride quality that makes the LS400 such a legendary cruiser. Keep the sidewall meaty enough to handle our terrible city streets.
Staggered setups are mandatory if you want the car to look balanced. An 8.5 or 9-inch front width paired with a 10-inch rear width gives you the perfect rake. It keeps the car looking planted and purposeful on the road.
Aim for offsets between 30 and 45 for the best results. Anything lower than 30 will force you to run aggressive camber or pull your fenders. We prefer the clean, functional look over the overly aggressive poke.
Don't ignore your tire selection when dialing in your stance. A slight stretch helps if you are tucking the rim, but don't go overboard. You want a tire that protects the polished lip from those nasty curb encounters.
Always invest in high-quality hardware when mounting these wheels. Cheap lug nuts are a recipe for disaster on a luxury sedan. Use tuner-style locking nuts to keep your investment safe from sticky fingers.
Style and Build Analysis
The polished finish on these Riverside Altstadts creates a stunning contrast against the paint. It reflects the environment like a mirror, drawing your eyes straight to the wheel arches. This finish makes the car feel premium and sophisticated.
The design of the Altstadt is iconic in the Japanese VIP scene. Its multi-spoke face feels timeless, bridging the gap between old-school luxury and modern stance culture. It commands respect without screaming for attention like a cheap aftermarket rim.
Stance is everything on a big-body sedan like the LS400. When the air suspension vents, the car settles perfectly over the tires. It transforms a boring executive cruiser into a refined, low-slung masterpiece.
I have seen many LS400 builds, but few nail the proportions quite like this one. Most people go too wide and end up ruining the car's natural elegance. This build keeps the lines clean while adding a layer of aggressive detail.
The road presence is simply unmatched. As it rolls down the street, the wheels catch the sunlight, flickering as the spokes rotate. It looks like a car that belongs on the cover of a magazine from the golden age of tuning.
Why We Love This Build
I cannot stop staring at this car. The way the polished Riverside lips catch the sunset makes the whole setup glow. It turns a classic 90s Lexus into a rolling piece of art that looks right at home on any boulevard. Every time the air suspension hisses and the car settles into that perfect tuck, I feel a rush of pure excitement. It is subtle, classy, and executed with total precision. This is exactly how you modify a luxury icon without losing its soul. It is a masterclass in taste and fitment. Go get yourself a set.
Full Specs Breakdown
Here is exactly what this owner is running. We break down every detail so you can replicate this build or use it as a starting point for your own setup.
- Car Make & Model: Lexus LS400 Base 1998
- Vehicle Color:
- Wheel Brand & Model: Riverside Altstadt
- Wheel Size: 18×9 / 18×10
- Offset: 41 / 34
- Wheel Finish: Polished
- Tires: Nankang NS-20 225/40 25.1″x8.9″ / 245/40 25.7″x9.6″
- Suspension: Air Suspension
Before You Buy: Fitment Checklist
We talk to Lexus LS400 Base owners every day. These are the questions we hear most before they pull the trigger on new wheels.
Will 18×9 / 18×10-inch wheels fit my Lexus LS400 Base? Yes, but fitment depends on width, offset, and tire size working together. A wrong offset means rubbing. A wrong tire size means poor handling. Always verify all three.
Do I need to modify my fenders? That depends on your offset and suspension. A conservative offset with stock ride height usually fits without modification. Go aggressive and you may need to roll or pull your fenders.
Can I daily-drive this setup? Absolutely. Thousands of Lexus LS400 Base owners run 18×9 / 18×10-inch wheels every day. The key is choosing the right tire with enough sidewall to absorb road imperfections.
