You can feel the soft feel and firmness of the carbon surface. The inside is filled with urethane. In addition, the carbon pattern of Matte+Black (matte) shows a sophisticated style, and it does not leave contamination due to abrasion that materials such as EVA and CORK show. 150mm/200mm/230mm long carbon grips can be used as rear grips. The inner diameter is 10mm/13mm selectable.