What is a Paintless carbon rim?

    PAINTLESS is Ultralight Non-Coated, which means the rims are original natural carbon surface, without any coatings/painting.

    First of all, regular rims from the mold, need a lot of processing links: grinding, drilling, painting, labeling, to the final shipment. Of course, during this process, each rim needs to go through a number of links of quality testing including flatness testing, roundness testing, weight testing, as well as tire pressure testing, and so on.

    But the non-coated rims are taken out from the mold, then drilled directly, tested, and labeled directly, shipped. It means we remove the“coating” link from the whole production process, which would be a necessary part of the appearance processing of regular rims for all of the manufacturers. However, we have broken through this.

  But the non-coated rims are taken out from the mold, then drilled directly, tested, and labeled directly, shipped. It means we remove the“coating” link from the whole production process, which would be a necessary part of the appearance processing of regular rims for all of the manufacturers. However, we have broken through this.

  Although it’s without any coating processing, our PAINTLESS rims still retain a fine appearance comparable to that of coated rims; there is no need to add an extra coating to mask defects; and more importantly, the non-coated rim appearance provides a more clear natural carbon fiber texture, with carbon lines more clearly displayed.

   In addition, a coating process of a finished rim requires 36 steps,5-7 days, during the period, the rim needs to go through a sandpaper polishing, and the non-coated rims greatly reduce the labor time also have great protection to the environment.

     But it wasn't that easy, and it took us 3 years to develop and test for this project, this was a huge challenge.

   Supply 28mm wide PAINTLESS 700c carbon rims 30/35/40/45/50/55/60mm rim brake and disc brake original natural carbon surface Ultralight Factory Quotes - OEM

Features?

Since the unpainted rims are not polished and painted, the carbon fiber filaments are not damaged, thus guaranteeing the initial strength of the rims. The surface of the rims also has only the gloss of the resin contained in the carbon cloth, which lasts longer than the gloss of the paint. At the same time, due to the mold surface having a release agent, the daily washing of the rim's surface saves more time, the rim is also not easy to be glued by dust.

How did we do that?

   All rims production can not be separated from molds and materials, we have carried out a lot of research and development in both directions.

    First of all, we use(a high-precision mold)labeled“NAK80 steel”,high-strength mold can ensure that after being used many times, mold tolerances are still in the best accuracy range, while adding a special resin flow groove on the new mold, which makes the resin of each rim more uniform.

    It is worth noting that the weight of the three non-coated rims compared to ordinary molds was reduced by 80g-100g, which is very amazing!

    Second, there are special changes in the material, it is well known that Japan's Toray carbon fiber is the best in the world, we call it carbon fiber precursor, because the imported material is only semi-finished products, we have to re-create this carbon fiber precursor, so that it can be used as carbon fiber cloth, and eventually used for rim production.

    In general, producing rims is like building a building, a skyscraper that requires the strongest concrete and steel bars to build. carbon fiber precursors like steel bars, and the resin is like concrete. And about the resin, we have independently developed a special resin, combined with T700.T800 carbon fiber precursor, upgrade the total quality of the carbon cloth, and finally formed the most suitable material for bicycle rims, which can make our rims glowing, while reaching ultralightweight!