DWT 850x6 QMA Wheel 4.0+4.5 Offset

A kart wheel is the aluminum hoop the tire mounts to. This DWT 850x6 QMA rim is built for Quarter Midget racing, not a full-size sprint kart or kid kart, and the 4.0+4.5 offset sets how far the rim sits in or out from the hub so track width and scrub stay where the chassis was aligned. Racers pick it up as a replacement or spare when a rim is bent, cracked, or the offset no longer matches the rest of the set. For a kid-friendly look at how chassis setup and hot tires work together, see Kart Science Club Episode 1 on chassis flex and hot tires.

It is a polished aluminum 3-lug Douglas/DWT wheel with the valve stem fitted as shown, marked OEM 706-40B, with a 600 LBS load sticker on the outer lip. Confirm hub bolt pattern and offset against your chassis before install. Do not assume interchange with other QMA offsets such as the DW500x5QMA 3.0+2.0 offset LF Quarter Midget wheel or 4-lug hubs. No bead-lock or extra width beyond 850x6 is claimed here. Another QMA size in the same family is the DW550x5QMA 3.0+2.5 offset wheel hub.

• Size: 850x6 QMA (Quarter Midget)
• Offset: 4.0+4.5
• OEM part: 706-40B
• Bolt pattern: 3-lug (as shown)
• Material / finish: polished aluminum
• Valve stem: included (as shown)
• Load marking: 600 LBS (sticker on rim)

• Keeps QMA kart racing setups consistent when you swap a damaged rim
• Offset is stated so you can match track width instead of guessing
• Polished 3-lug hoop with stem already in place for a straightforward tire mount