How long til someone other than Pirelli makes the front sizes for these 21 inchers?

[PQ]

I thought it would have happened by now. I can find the rears, Dunlop and a few others, but Pirelli is still the only ones to make the fronts.

[Nine Ball]

21" is the bastard size for wheels and tires. Kind of like 19s were back when 20s seemed big. The reason a few make "rears" is because these tires were intended for sport SUV's that use the same size tire front and rear. Funny stuff, eh?

20s and 22s are far more popular, with more wheels and tires available. Not sure the market will ever embrace 21s due to that fact.

[PQ]

Originally Posted by Nine Ball

21" is the bastard size for wheels and tires. Kind of like 19s were back when 20s seemed big. The reason a few make "rears" is because these tires were intended for sport SUV's that use the same size tire front and rear. Funny stuff, eh?

20s and 22s are far more popular, with more wheels and tires available. Not sure the market will ever embrace 21s due to that fact.

So I wonder why GM did it this way? I mean don't get me wrong, I love the wheels, and I knew the 21s weren't popular, but it just seems that they could have done it differently.