This Big Ripper frame now comes equipped with an American bottom bracket and an OG seatstay wishbone plate just like the original PK Ripper. The 29” x 2.4” SE Bozack tires are just wide enough to give stability and cushion, but also roll extremely fast. Whether you are an old school BMX rider reliving your youth or a new school SE bike life rider raising it up, the Big Ripper is for you.