Douglas Black Anodized QMA Wheel 4.0+4.5 Offset

Model: DW850x6BQMA
Category: Quarter Midget (QMA) kart racing wheel
Offset: 4.0+4.5 (listed equivalently as 4.0+450 / 4.50)
Finish: black anodized aluminum
Use: matching pair or set so track width and tire placement stay consistent

A kart wheel is the metal rim the tire mounts on. Offset is how far that rim sits in or out from the hub, which changes how wide the go-kart sits on the track. This Douglas Wheels QMA wheel is a black anodized aluminum rim built for quarter midget karting, not a sprint kart, dirt kart, or shifter kart hoop. Racers typically run a matching pair so chassis setup, tire placement, and measured track width stay even left to right.

The source listing does not state bolt circle, bead diameter, or a numeric width beyond the model code. Confirm hub pattern, bead, and the 4.0+4.5 offset against your chassis and tire package before you order. Do not assume fitment from a photo alone.

FAQ

1. Will this QMA wheel fit my quarter midget hub? It is sold as a Douglas QMA (Quarter Midget) kart racing wheel. Verify hub pattern, bead, and 4.0+4.5 offset against your chassis and tire package; those dimensions are not listed beyond the model code.
2. Is this compatible with sprint kart or LO206 4-cycle kart wheels? No. This listing is a QMA wheel for quarter midget karting. Sprint kart, dirt kart, shifter kart, and typical LO206 4-cycle kart rims use different bead and hub standards.
3. How should I install a matching pair for track width? Mount the tire on the rim, seat the bead, and torque hub hardware to your chassis spec. Run a matching pair (or set) so offset and tire placement stay consistent across the go-kart.
4. What warranty or finish care should I expect on the black anodized aluminum? Follow Douglas Wheels and your retailer policy after delivery. Keep the black anodized finish clean, inspect the center bore and bolt holes after kart racing weekends, and replace a bent rim rather than running it.