Home › Classic Pre-1984 › Chassis › Frame › Rigid › Replica "HM" Straight Leg Rigid Frame
PART 51-1955

Replica "HM" Straight Leg Rigid Frame

by V-Twin
$2,594.10
V-Twin list $2,161.75 ยท our price includes online ordering & support
Checkout is not open yet — add parts to build your list. How shipping will work

You will also need another part

  • In some instances it may be necessary to ream or file holes slightly in order to assemble parts onto the frame.
  • Use #31-0475 Front Engine Mount Spacer to accept 1936-1947 Kucklehead or Flathead engines in 1948 - up frames.
  • Features #31-0528 Replica Tool Box Mounting Bracket.
  • *NOTE: Replica "HM" is our updated version with forging hallmarks on many of the components.
  • *NOTE: Features the following forged parts with HallMark numbers and marks: seat yoke, front motor mount, side car loops, rear axle plates and transmission front/rear mounts.
  • Required Required to use with #24-0121 Zinc Fork Neck Cup Set with Races.
Big Twin 1984 & UpClassic Pre-1984
๐Ÿ๏ธ Add your bike to My Garage and we'll tell you instantly whether this fits. Listed for 1 model.

Description

Replica "HM" straight leg rigid frame is an authentic reproduction of the 1954-1957 straight leg frame with stock 30ยฐ 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: This "HM" type has forgings with original markings. 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 and marks in these positions: seat yoke, side car loops, rear axle plates and transmission front and rear motor mounts.

Specifications

V-Twin number
51-1955
Manufacturer
V-Twin
Sold as
1 - EA
Origin
Imported
2026 catalogue pages
647

Goes with this part

V-Twin lists these alongside 51-1955 — replacements, the parts commonly fitted at the same time, and supersessions. Check the fitment on each before ordering.

Fits these motorcycles (1)

FL1948-1984