How do Krux turn compared to Ace?
They're two very different trucks -
Krux - I find to be the most stable trucks with the exception of Theeve. Less wheelbite than any truck I've ever had. They're lighter and have more kingpin clearance than Ace. Stock bushings are perfect right out of the box. The turn is similar to older stage Indys. Every pair of Krux I've seen have perfect casting, centered axles, etc. Quality is top notch.
Ace - Turn better than any truck after you change out the stock bushings. A lot of people use Krux bushings in Ace to get them to turn. Lots of wheelbite, super heavy, quality control issues
Both use softer chinese aluminum. The grind is unbelievably smooth but they wear down faster than the Ermico trucks