The Shapeshifter is a lightweight, durable BMX frame built from heat-treated 4130 chromoly, featuring reinforced tubing, integrated chain tensioners, and a compact 12.75″ chainstay for responsive handling. Features Material: Heat-treated 4130 chromoly Reinforced Construction: Externally and internally gusseted top and down tubes Tubing: Double-butted top tube and externally butted seat tube Brake Mounts: Flush-mounted brake lugs BB & Head Tube: Heat-treated; head tube tapped for gyro tabs Seat Tube: Integrated seatpost clamp Dropouts: 8 mm investment-cast dropouts with integrated chain tensioners Chainstays: Single-bend design, 12.75″ (320 mm) slammed Brake Hardware: Sold separately Specifications Top Tube Lengths: 20.5″, 20.75″, 21″, 21.25″ Head Tube Angle: 75.5° Seat Tube Angle: 71° Chainstay Length: 12.75″ / 320 mm Seat Tube Height: 9″ BB Height: 11.625″ Weight: 5.1 lb at 20.5″