Originally Posted by nova
Lester cast magnesium wheels were put in to a laythe and turned to true. From my under standing of the casting proccess the rims are made extra large in diam and turned down on the laythe. Most of the out of roundness comes from the edge of the rim and not on the inside towards the hub.
I personalyy dont know how far id trust a cast rim on mtb or roaad biike do to lateral flexxing esp around corners they could easly snap.
I don't know if my testimonial is of any value, but here goes anyway: I have 130 Km on these 6-spoke Alu-Mg wheels by now, I corner very agressively, but I am light (only 61 Kg). I also drive rather agressively offroad. So far, no problems, and they feel fine even in very windy conditions. In other words, I just didn't notice them at all. What impacted my riding experience was mostly the tires, which I changed, but the rims, I had not noticed them in any way.
The day I should have some trouble with them, I will inform the forum.