would be great if not ever would break the rim ...

the wheels look absolutely fabulous on my Carbon Fighter II brushless and drivability is great. Outstanding grip in any terrain, on asphalt abrasion is however quite big (have shut down with two 4000 LiPos more than one millimeter from the profile ...)
But:
After a maximum of three battery charges I always have a rim fracture. The plastic is very hard and not at all flexible. In combination with the low-profile tires, it already comes so small bump on the side (when drifting around the curves) to break the rim. UHU hard plastic can be repaired while the reasonably, is in the long run but stupid.