Part C42-2971-1/8 in. x 0.083 4130N Double Bend21 in. Tall17 in. Centers5-1/2 in. Bend Radius Part C42-2981-1/8 in. x 0.083 4130N Double Bend17 in. Tall18 in. Centers5-1/2 in. Bend Radius Part C42-3021-1/2 in. x 0.083 4130N Double Bend26 in. Tall20 in. Centers6 in. Bend Radius Part C42-3031-1/2 in. x 0.083 4130N Double Bend22 in. Tall21 in. Centers6 in. Bend Radius Part C42-3061-5/8 in. x 0.083 4130N Double Bend26 in. Tall20 in. Centers7 in. Bend Radius Part C42-3071-5/8 in. x 0.083 4130N Double Bend22 in. Tall21 in. Centers7 in. Bend Radius Leave the Bending to Us If you're building a new car or updating your current race car, these affordable pre-bent chromoly pieces are perfect for the professional chassis builder and the do-it-yourselfer.You may choose from our standard cage kits or individual pieces, which will fit most installations. We also offer custom cage kits built to your specifications.Note: Welding should always be performed by a qualified welder.