Three terms that describe exactly how far your wheel and tire sit relative to the fender lip and how offset controls each one.
Poke is measured in millimeters specifically, how far the outer tire face extends past the fender edge. A wheel with 15mm of poke means the tire sticks out 15mm beyond the fender lip. This is common in the stance and JDM tuning community but creates legal and clearance risks on public roads.
To create poke, lower the ET of the wheel compared to stock. Switching from ET45 to ET25 on the same width wheel moves the outer face 20mm further out. If the original wheel had 5mm of tucked clearance, the new wheel would have 15mm of poke.
Flush fitment is considered the ideal stance by most enthusiasts. The tire fills the entire wheel arch without rubbing or protruding. Because fender geometry varies by vehicle and suspension height, flush fitment usually requires corner balancing checking each corner individually, as fender gap is rarely identical on all four corners.
Most factory (OEM) vehicles come with tucked fitment. Manufacturers build in 10–20mm of fender clearance on each side as a safety margin for suspension travel, tire flex, and manufacturing tolerances. The amount of tuck on a stock vehicle depends on the wheel width, ET, and tire size specified by the manufacturer.
Tire extends beyond the fender edge. Low ET or wide wheel. Risk of fender contact and legal issues.
Tire edge aligns exactly with fender lip. Perfect stance. Requires precise offset and width calculation.
Tire sits inside the fender. High ET or narrow wheel. Safe from fender contact. Less visual width.
Example: Stock wheel is 7.5" wide at ET45. New wheel is 8.5" wide at ET30. Stock outer position = (190.5 ÷ 2) − 45 = 50.25mm. New outer position = (215.9 ÷ 2) − 30 = 77.95mm. Difference = 77.95 − 50.25 = +27.7mm more poke. Use our wheel offset calculator to run this instantly without manual calculation.
The most reliable method is to use a wheel spacer test: fit progressively thicker spacers (5mm, 10mm, 15mm) to find how much outward movement achieves flush. The spacer thickness that achieves flush equals the amount you need to reduce your ET. A 15mm spacer on ET45 = the fitment you would get with ET30 on the same wheel.
| Vehicle Style | Recommended Fitment | Reason |
|---|---|---|
| Daily Driver | Flush to Tucked | Legal, safe, no fender risk |
| Track / Race Car | Flush to slight Tuck | Avoids tire contact during cornering |
| Stance Build | Poke | Visual width, aggressive look |
| Off-Road Truck | Tucked | Protects tires during articulation |
| Lifted Truck | Flush to mild Poke | Fills larger fender opening from lift |
| Show Car | Aggressive Poke | Maximum visual stance width |
In most US states and EU countries, tires must be fully covered by bodywork or fender flares. A wheel with visible poke past the fender line can fail a vehicle inspection and result in a fine. If you want a wide stance legally, fit fender flares that extend over the tire this covers the poke and keeps the vehicle road-legal.