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David L.
Can these but put on WK2 platform?
While the Quadratec Hardrock II Wheel shares the same bolt pattern as the Grand Cherokee WK2, and technically you could, it is not a recommended fitment for that platform due to significant differences in offset and backspacing.
Scott G.
Can I run my 40x13.50R17 tires on these wheels?
While you can technically mount a 40x13.50R17 tire on the Quadratec Hardrock II Wheel, it is not recommended for several safety and performance reasons.
Why It's Not a Perfect Fit
Wheel Width: The Hardrock II is 8.5 inches wide. Most tire manufacturers (like Mickey Thompson or Nitto) require a minimum wheel width of 9 to 10 inches for a 13.50-wide tire. Running a rim that is too narrow can cause the tire to "crown," leading to rapid center-tread wear and unpredictable handling.
Backspacing Issues: The 5.2-inch backspacing is designed to keep tires tucked under the fenders of a JK/JL. With a massive 40x13.50 tire, this high backspacing will almost certainly cause the tire to rub on your frame rails, control arms, and sway bar links during tight turns.
Load Rating: These wheels have a load rating of 2,500 lbs. While that is strong for a Jeep, 40-inch tires place extreme leverage and stress on the wheel structure, especially during off-road impacts.
The Hardrock II is an excellent "factory-plus" wheel for someone running 35x12.50 or even 37x12.50 tires who wants to keep the tires mostly under the fenders. However, for a 40-inch tire, this wheel lacks the width and offset needed for a safe and functional setup.
Why It's Not a Perfect Fit
Wheel Width: The Hardrock II is 8.5 inches wide. Most tire manufacturers (like Mickey Thompson or Nitto) require a minimum wheel width of 9 to 10 inches for a 13.50-wide tire. Running a rim that is too narrow can cause the tire to "crown," leading to rapid center-tread wear and unpredictable handling.
Backspacing Issues: The 5.2-inch backspacing is designed to keep tires tucked under the fenders of a JK/JL. With a massive 40x13.50 tire, this high backspacing will almost certainly cause the tire to rub on your frame rails, control arms, and sway bar links during tight turns.
Load Rating: These wheels have a load rating of 2,500 lbs. While that is strong for a Jeep, 40-inch tires place extreme leverage and stress on the wheel structure, especially during off-road impacts.
The Hardrock II is an excellent "factory-plus" wheel for someone running 35x12.50 or even 37x12.50 tires who wants to keep the tires mostly under the fenders. However, for a 40-inch tire, this wheel lacks the width and offset needed for a safe and functional setup.
Don K.
Is the ring replaceable when it gets beat up from grazing rocks? Looking for a wheel that has a ring guard.
No, this is a faux (or simulated) beadlock, not a true beadlock. Faux bead locks are part of the single-structure wheel itself, while true beadlocks will have the replaceable rings. Brands we carry or can special order that have a true beadlock option include - Black Rhino, Dirty Life, Fittipaldi, Hutchinson, KMC, Method, and Teraflex.
Note: Not all true beadlocks are DOT Approved - If you primarily drive on public roads and occasionally off-road, simulated beadlock wheels might be a safer and legally simpler option to achieve the desired look. If you require the extreme low-pressure capability of true beadlocks for serious off-roading, be aware of potential on-road restrictions and the necessary maintenance.
Note: Not all true beadlocks are DOT Approved - If you primarily drive on public roads and occasionally off-road, simulated beadlock wheels might be a safer and legally simpler option to achieve the desired look. If you require the extreme low-pressure capability of true beadlocks for serious off-roading, be aware of potential on-road restrictions and the necessary maintenance.
Don N.
Hi, Does the Hardrock II Gunmetal wheel come in an 18" size?
They do not. Just the 17".
Chris C.
Do factory lugs fit these?
Yes, they do.
Steven H.
Does this wheel have a functional beadlock or simulated?
These are a simulated beadlock.