Se racing pk ripper super elite bmx bikethe se racing pk ripper super elite bmx bike is undoubtedly the worlds fastest pk ripper and the all new model has more bmx innovations than previously thought possible the ultra stiff 6066 aluminium frame now comes equipped with new features such as a tapered headtube pf30 bottom bracket and 20mm dropouts front and rear the game has changed can you keep upthis new lightweight 6066 aluminium frame built with floval top tube bi oval downtube taper