VT part number: 51-1955. Replica straigt leg rigid frame is an authentic reproduction of the 1954-1957 straight leg frame with stock 30° neck rake. Features cross tube to accept mechanical rear brake assembly with a star hub wheel with chain drive. Forged parts include: neck, front and rear engine mount, side car mounts, top seat yoke, and footboard tabs. This mechanical frame will accept a neck lock. Front engine mount spacer will allow installation of a Knucklehead or Flathead engine. Frame will accept all Panhead and Shovelhead engines. *NOTE: Cross shaft, seat post, transmission plate and rear axle assembly are included. *NOTE: Must order tapered bearing neck cups separately. *NOTE: Frame features forgings with the factory numbers and "Hot Forged" in place. V-Twin MFG supplys a Bill of Sale only referencing the part number. *NOTE: V-Twin replica frame now has forged parts with hallmark numbers andmarks in these positions: seat yoke, front motor mount, side car loops, rear axle plates and transmission front and rear motor mounts.