Replica retro wishbone frame original style is updated to accept flat side tanks. Original forged parts include: neck, side car mounts and rear axle area. For all Big Twin engines with 4, 5 or 6 speed transmission. Uses a 200 tire. Includes seat post, transmission mount plate for 4-speed transmission, and rear axle. Accepts Panhead, Shovelhead, Evolution and Twin Cam engines but will require a tin inner primary. Accepts 1986-1999 FXST gas tanks and chain final drive. Frame has a +2" raised neck and 9-1/8" between the axle plates. Supplied with the frame is the brake cross shaft for mechanical brakes and stock rear axle plate for use of the star hub wheel and mechanical brakes. Tje frame is taller in the engine compartment to house the Evolution and Twin Cam motors. Can also be used with rigid mount 5 and 6 speed transmissions. Retro V-Twin rigid frame accepts solid mount TC-88 engines, using steel motor mount, available separately.