The santa cruz chameleon r1 am 29er hardtail mountain bike 2017 sees the return and redesign of a santa cruz classic for 2017 built for everything from dirt to asphalt it really lives up to its moniker of chameleon built around an interchangeable dropouts system the chameleon can run 275 amp 29 sized wheels as well as geared or as singlespeed built around an interchangleable dropout system the santa cruz chameleon can run geared or singlespeed on both 275 amp 29 sized w