Courtesy of Jem Booth I believe.
FORK STEM LENGTHS - all measurements are approx and are taken with the lower bearing track removed
Italian Series 3+ GP - has speedo/front brake cable support as seperate piece - also has cut out for headset clamp at the side of the thread (in line with front wheel)
Chrome ring
From bearing track seat to centre line of steering stop = 361mm
From bearing track seat to bottom of thread = 413mm
From bearing track seat to top of fork stem = 467mm
Non chrome ring
From bearing track seat to centre line of steering stop = 355mm
From bearing track seat to bottom of thread = 405mm
From bearing track seat to top of fork stem = 458mm
TV 200 - Chrome ring
From bearing track seat to centre line of steering stop = 361mm
From bearing track seat to bottom of thread = 413mm
From bearing track seat to top of fork stem = 467mm
GP
From bearing track seat to centre line of steering stop = 330mm
From bearing track seat to bottom of thread = 380mm
From bearing track seat to top of fork stem = 438mm
Italian Series2 - has welded on "loop" for speedo cable/front brake support - also has the cut out for the headset clamp bolt at the rear of the thread (at 180 degree to front wheel)
TV175 S2
From bearing track seat to centre line of steering stop = 361mm
From bearing track seat to bottom of thread = 412mm
From bearing track seat to top of fork stem = 462mm
LI 150 S2
From bearing track seat to centre line of steering stop = 359mm
From bearing track seat to bottom of thread = 407
From bearing track seat to top of fork stem = 462
Spanish
JET 200 -Large damper type - have single damper stud of 9mm diameter welded to single plate at top of fork leg. Also has cut out for headset clamp at the side of the thread (in line with front wheel)
From bearing track seat to centre line of steering stop = 358
From bearing track seat to bottom of thread = 405mm
From bearing track seat to top of fork stem = 460mm
