US Patent 10315727 Bicycle rear sprocket assembly

A bicycle rear sprocket assembly is basically provided that includes a first sprocket assembly and a second sprocket assembly. The first sprocket assembly includes at least one first sprocket and a first torque transmitting profile. The second sprocket assembly includes at least one second sprocket and a second torque transmitting profile. The second torque transmitting profile is configured to engage the first torque transmitting profile to transmit torque between the first sprocket assembly and the second sprocket assembly. A threaded portion is provided to one of the first sprocket assembly and the second sprocket assembly. The threaded portion is configured to threadedly engage a bicycle rear hub assembly.