This is the BMC Racemaster and Roadracer Streampost 73.5 Seatpost. A genuine BMC replacement Streampost 73.5. Compatible for use with the BMC Racemaster SLX (2009), Road Racer SL 01 (2009) and Road Racer SLW (2009). Available in either 320 or 400mm.
bmc racemaster and roadracer streampost 73 5 seatpost 320mm soiled on other UK sites