Technical & Reference Section > Tech and Restoration

cranks ID,boss fabweld or something else?

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sawzall:
they could be boss fraz as im sure the early ones were large splined like flights

firebird4130:
ah, I'll do a bit of research, cheers phil  ;)

firebird4130:
aha, here they are, so I'm still none the wiser  :-\  :LolLolLolLol:

OrgasmDonor:
look like early boss to me, deffo not the fabweld (the pictured ones anyway)

SaMAlex:
Fab weld were squished at one end. Boss were finished neatly at both ends.

Boss used the larger spine for a while (not the same as redline 401 spine).

Boss made the first S&M PA cranks. They used the same, big spine spindle but pierced the join at the pedal end. S&M did this cos the Boss crannks always broke at the pedal end. All the S&M cranks broke at the BB end!  :crazy2:

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