The LM928X carbon fiber rim is a model of symmetric extralight mountain bike rim in size 29" 28mm width, weight only 285g. The "X" in the Product Code stands for "Extralight". The Extralight rims are made of T700+T800 carbon fibers materials. T700 carbon fiber provides sufficient tenacity and T800 carbon fibers provides suffient rigidity. The materials are mixed according to a certain proportion, the process of layer-up is controlled technically, so that the weight of the extralight rim can be greatly reduced under the condition of ensuring rim's performance.

This model of rim could be mounted tires at size around 1.5" ~ 2.1". It can be used for cycling forms of cross country (XC), marathon, trail and so on.