Shipment of DSE and Standard Bicycle BuildsUPS ground shipping and a Serfas flight case is included with sale of all fully built bikes. Since this particular flight case is just under freight sizing, shipping fees are lower, offsetting much of the cost of the case. The case virtually guarantees your bike will arrive undamaged. The Serfas is incredibly durable, incorporates rollers, a hand strap, and easy-to-operate lockable, rust-proof twist latches. We offer the option of a reuseable cardboard shipping case for non-DSE builds.