Overview
The Pro Comp 72 Series Axis is a 20 x 10 inch aluminum spoke wheel in a satin black milled finish, part number PXA5172-21039, with a 6 on 5.5 bolt pattern. It suits sport utility vehicles and performance trucks.
Pro Comp says these wheels are made with low-pressure casting for strength, and that the design allows brake clearance on trucks and SUVs. The listed offset is -18 with a 4.75 backspacing, so the mounting face and the inside clearance should be checked against your brakes and suspension before the wheel is chosen. The 20 inch diameter and 10 inch width also set the tire sizes the wheel can take, so the tire you plan to run has to fit that width and diameter as well as the offset.
Key features
- 20 inch diameter and 10 inch width
- Spoke design in a satin black milled finish
- Aluminum construction made with low-pressure casting
- 6 on 5.5 bolt pattern, with a second listed pattern of 6 on 135
- 108 center bore, -18 offset and 4.75 backspacing
Choosing a sport truck wheel
A spoke wheel with a deep mounting face can clear a large brake caliper, but the inner barrel must still leave room for the suspension and the tire sidewall. Check the wheel at full steering lock and after the suspension has been loaded, because the clearance that looks fine on a jack can change on the road.
Load capacity and tire construction also matter. A heavier truck or a set of larger off-road tires puts more stress on the wheel and the hub, so the wheel should be matched to the vehicle’s weight and the tires’ load rating.
- Measure inner barrel clearance against the suspension
- Test steering lock with the tires you plan to run
- Confirm the tire’s load rating suits the vehicle
- Keep track of which bolt pattern the wheel was set up for
Specifications
| Brand | Pro Comp Alloy Wheels |
|---|---|
| Part number | PXA5172-21039 |
| Series | 72 Series Axis |
| Diameter | 20 inches |
| Width | 10 inches |
| Style | Spoke |
| Finish | Satin black, milled |
| Construction | Aluminum |
| Bolt pattern | 6 on 5.5 |
| Second bolt pattern listed | 6 on 135 |
| Center bore | 108 |
| Offset | -18 |
| Backspacing | 4.75 |
Vehicle fitment
This wheel is a universal fit with no vehicle attached. Its bolt pattern, center bore, offset and brake clearance have to match your hub and brakes before ordering.
Confirm your vehicle’s year, model and trim before ordering.
Installation notes
Check that the -18 offset and 4.75 backspacing clear your brake calipers, suspension components and tire width before mounting. A lower offset moves the tire outward, which is the usual cause of fender and steering rub. Confirm which of the two listed bolt patterns, 6 on 5.5 or 6 on 135, matches your hub before you mount it.
What’s included
Confirm which hardware, center caps and tires you need before mounting.
