Restore   Chapter 67   Chain Guards ←  Up  →     

Chain Guards

...per Charles "Mutt" Hallam,

This time the discussion is on "Chain Guards"
There are actually 6 different chain guards. Here are the differences:
Type I
1948-1952 S Model 125 chain guard used a square nut, spotwelded high up on the chain guard,
1 0 2 3 is stenciled in white paint on the raised 'land' area.
Type II
1953 165 ST model 165 chain guard was a one year only part. It is bent on the front
end due to the change in mounting on the motor case. It also has the square nut spotwelded
on the opposite end, but in a lower position than Type I, due to the larger rear sprocket.
1 0 2 3 is also stenciled in white paint on the raised 'land' area.
Type III
1954 to 1959 ST model 165 chain guard rear mounting was changed. It has an internally
threaded stud and uses a "chain guard spacer" that fits over this stud. 1 0 2 3 is also
stenciled in white paint on the raised 'land' area.
Type IV
1955-1959 HUMMER B models chain guard is just like the Type I with the exception of the
rear mounting. It also has the internally threaded stud and uses the -54 spacer. The Production
models of the HUMMER chain guards had the 1 0 2 3 stenciled in white paint, but SOME
of the "replacement" HUMMER guards that were sold at the HD dealers did not have the white
painted numbers.
Type V
This is the chain guard for the 1960 to 1962 Super 10, Scat and Pacer. It is just like the Type IV
with the exception of the raised numbers 1 0 2 3 . This embossing was non existant on this chain guard.
It had the internally threaded stud and used the -54 spacer.
Type VI
This is the last chain guard, used only on the swinging arm models. It is totally different in design.
It is a 2 piece affair that covers the chain from the axle centerline to over the top of the chain.

  Last updated: July 29, 2009 ←  Up  →