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The BMC Streampost 73.5 Carbon Seatpost offers the aero-advantages of an integrated seat post with the adjustment of a traditional post. BMC was able to do this by adapting an age-old stem fastening system to a carbon-friendly, modern application. Simple-to-adjust and near-impossible to over-tighten, the teardrop profile self-aligns the saddle so it's always dead center. To install the Streampost, you match up lines on the post and wedge with the bottom bolt, and then drop the post into the tube. With the post set to your height, you give the 6mm hex bolt next to the seat clamp a half turn to lock it in place. That's it, you're ready to ride.
Buy BMC Streampost 73.5 Carbon Seatpost from Chain Reaction Cycles, the world's largest online bike store.