Overview
The Pro Comp 42 Series Blockade 8142-29539 is a 20-inch aluminum split spoke wheel, 9.5 inches wide, in a gloss black finish with milled accents. The title lists bolt patterns of 6 on 5.5 and 6 on 135, so check the pattern against your hub before ordering.
A 6 on 5.5 pattern means six lug studs on a 5.5-inch bolt circle, and 6 on 135 means six studs on a 135 circle. A negative offset of -6 pushes the mounting face outward, which moves the wheel toward the fender, so compare that with your current wheel before choosing a size.
Pro Comp builds the Blockade with low-pressure casting, which it says gives the wheel strength and a light weight for its style. Pro Comp rates the wheels from 2500 to 3650 lbs per wheel, and the Pro Comp Promise provides a transferable warranty.
Key features
- Low-pressure cast aluminum construction
- Split spoke style
- Gloss black with milled finish
- 20-inch diameter and 9.5-inch width
- Dual bolt pattern: 6 on 5.5 and 6 on 135
- Load rating of 2500 to 3650 lbs per wheel
- Pro Comp Promise transferable warranty
Choosing offset and fit
Offset and backspacing decide where the wheel sits relative to the hub and fender. A wheel with a different offset moves the tire in or out, which changes clearance at the suspension, brake caliper and fender lip. When comparing wheels, measure the current setup first and note how far the tire sits from the fender at full lock and full compression.
Bolt pattern and center bore matter as much as offset. A wheel must match the hub’s lug count and bolt circle, and a bore larger than the hub needs a hub-centric ring so the wheel centers correctly. Tire diameter and load rating should also suit the vehicle’s axle load and the tires you plan to run.
- Torque lug nuts in a star pattern after the first drive
- Check lug seats for damage before mounting
- Re-check lug torque after the first few miles
- Balance the wheel and tire assembly before road use
Specifications
| Brand | Pro Comp Alloy Wheels |
|---|---|
| Part number | 8142-29539 |
| Series | 42 Series Blockade |
| Diameter | 20 inches |
| Width | 9.5 inches |
| Offset | -6 |
| Backspacing | 5 |
| Center bore | 108 |
| Bolt patterns | 6 on 5.5; 6 on 135 |
| Style | Split spoke |
| Construction | Aluminum |
| Finish | Gloss black, milled |
| Load rating | 2500 to 3650 lbs per wheel |
| Warranty | Pro Comp Promise, transferable |
Vehicle fitment
Confirm the bolt pattern, center bore, offset and backspacing against your hub, and check the 20-inch diameter against the tire you plan to run.
Installation notes
Confirm which bolt pattern your hub uses before mounting, since the wheel is offered with two patterns. A center bore larger than the hub calls for a hub-centric ring.
What’s included
One wheel. Check the package contents for center caps and lug nuts before mounting.
