MacPherson, Double Wishbone, Multi-Link: What Your Suspension Means for Fitment

Two cars with identical fender gaps can swallow completely different wheels, and the reason lives behind the hub: the suspension architecture decides how much room exists inboard, how camber changes as the car moves, and what you'll hit first when you go too wide. Every car in our database is tagged MacPherson strut, double wishbone, or multi-link — here's what each tag means for your wheel choices.

MacPherson strut: the space-saver with a catch

One lower control arm, and a big telescopic strut that is both the damper and the upper locating link. Cheap, compact, and on the front of most FWD cars plus plenty of RWD ones (E9x BMW 3-series fronts, 986/996 Porsches, every GTI and WRX).

• The strut body is the inner wall. It stands nearly vertical just inboard of the tire, so inner clearance runs out fast as width grows or offset rises. This is the architecture where the "will it clear the coilover?" question is most often answered no.
• Little camber gain in compression. A lowered strut car doesn't naturally lean its tires in much, so fender clearance you lack at ride height stays lacking in corners. Static camber comes from camber plates or eccentric bolts, not geometry.
• Fitment implication: favor width gained outboard (lower offset) over inboard, and model the strut clearance before buying wide square setups. Aftermarket coilovers with slimmer bodies genuinely free up millimeters here.

Double wishbone: room and camber curve

Upper and lower A-arms locating the hub independently of the damper. The classic performance front end — 90s Hondas (EG/EK/DC2), S2000, NSX, most trucks, Mustang S550 and up front, many Toyotas.

• More inboard room down low. With no fat strut beside the tire, the lower half of the wheel well is comparatively open; the limit moves to the upper control arm and its ball joint, up near the top of the tire.
• Camber gain in compression. The geometry leans the tire inward as the suspension compresses — lowered wishbone cars gain static negative camber and tuck the tire top harder in corners. That's free fender clearance right where rubbing happens, and why Civics wear wide wheels so gracefully.
• Fitment implication: high-offset wide setups clear better than the same package on a strut car, but check the UCA at full compression and full lock — the contact point is higher and easier to miss on a static test fit.

Multi-link: precise, packed, position-dependent

Three to five separate links per corner, each controlling one degree of freedom. Standard on modern German front axles' rears and increasingly fronts (5-link Audis, W205 Mercedes, G-chassis BMW), plus nearly every modern independent rear.

• Clearance varies with position. Links sweep through arcs; the gap you measure straight-ahead at ride height isn't the gap at full lock or full droop. Static measurements flatter multi-link fronts.
• Controlled camber curve — engineered to keep the contact patch flat, which means predictable but modest tuck benefits when lowered.
• Fitment implication: respect the published inner clearance number, and verify wide setups through the steering range. On the rear, multi-link is usually generous — one reason rear-biased stagger fits so well on modern RWD sedans.

Cheat sheet

One warning about swaps and coilovers

Suspension modifications move the walls. Coilovers with different body diameters, offset top mounts, relocated sway bar end links, or big-brake kits all change the clearance the vehicle. After any of those, confirm every relevant gap directly — the measuring guide covers the technique.