Replacement lever blades install seamlessly into your existing RSC perch assembly. Replacement blades are provided with dual sealed ball bearings. Available in the Universal spec style or the Harley spec, and offered in all 9 color choices in both the raw machined and tumbled anodized finishes. When choosing a color, keep in mind the potential for your existing perch assembly to have faded from UV exposure. A contrasting color to your existing RSC assembly is recommended.