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The Z-Max Evolution features Ritchey’s signature mountain bike tread pattern, which is the culmination of years of development and design. Tread lugs are spaced wider and shortened for faster handling, reduced rolling resistance and lighter weight.

• The Z-Max Evolution features Ritchey’s signature mountain bike tread pattern, which is the culmination of years of development and design. Tread lugs are spaced wider and shortened for faster handling, reduced rolling resistance and lighter weight.