fork info
	fk mfg spec sheet
	-fork springs - perch
fk_balspr
	fk dim 00 - air bal spr
fk_bv   fk dim 0000 - fork
	-fk dim 01 - bv assy
	-fk dim 02 - bv ck
	-fk dim 03 - bv pist / shims
	-fk dim 04 - bv stem
	-fk dim 05 - bv needle
	fk dim 06 - bv icrod
	fk dim 07 - bv icpist
	fk dim 08 - bv icspr
	fk dim 09 - bv cap
fk_mv
	-fk dim 10 - mv assy
	-fk dim 11 - mv pist / shims
	-fk dim 13 - mv cup_sc
	-fk dim 14 - mv stem
	-fk dim 15 - mv needle
	-fk dim 16 - mv ctg rod
	-fk dim 16a - mv reb rod
	fk dim 17 - mv bolt_jambnut
fk_ctg
	-fk dim 18 - ctg assy
	Optional Dimens   fk dim 19 - ctg subtank   fk dim 20 - ctg tube
	-fk dim 21 - ctg seal_assy
fk_tubes
	fk dim 22 - tubes [=fork]
fk_air
	-fk dim 23 - air mv assy
	-fk dim 24 - air ctg assy