A seatpost assembly is disclosed. The assembly includes a housing fixedly coupled to a seatpost, the housing including at least one adjustable clamp assembly retaining member. The assembly also includes a reversable saddle rail clamp assembly, the reversable saddle rail clamping assembly having a bottom saddle rail clamping member and a top saddle rail clamping member. The top saddle rail clamping member is configured to be coupled with the bottom saddle rail clamping member in a first orientation to provide a first offset position, and further configured to be coupled with the bottom saddle rail clamping member in a second orientation to provide a second offset position different from said first offset position.