Lambretta forks

[nickw1969]

Hi,

I've got a set of Spanish forks in the for sale section, (see link below) I actually need a set of forks for an 1964 Italian 150 special chrome ring frame.

Can anyone tell me if these Spanish ones will definitely fit without any safety issue or fitting problems?

I'm happy to keep them and replace the damper brackets if the forks will fit.

Thanks
Nick

http://scooterotica.org/forum/viewtopic.php?f=11&t=9399

[RICSPEED]

someone did post up a list of the stem lengths of lambretta forks but i have had no luck finding the post but i think the difference should not be a lot ,it would certainly save you a lot of bother trial fitting them first

[shocky]

i think jem boothe had something to do with this
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

[shocky]

i thought id answered your question on a previous post......... the limiting factors are the steering stop which can be moved no problem and the position of the headset clamp bolt cut out you need to check the thread lengths as well and maybe grind a few mm of the top of the forks ill measure my set tommorow and let you know what chrome ring ones are

[nickw1969]

Great - Thanks guys for your help

[soulsurfer]

Hmmm. Steve, do you know if chrome ring forks will fit okay into a non-chrome ring frame?

[shocky]

i dont think there's enough thread thread on the top to tighten them down ,its more to do with the position of the headset clamp cut out which causes issues as this makes the headset higher or lower and leaves a gap or rubs , the chrome ring ones are longer becouse the chrome ring extends the length of the fork tube, the headset lower is cast to suit IE shallower than the later non chrome ring ones

[soulsurfer]

s**t! I may have to send another pair of forks down

[shocky]

you need to try them before you send them just incase what headset have you got

[soulsurfer]

I have a chrome ring frame that I removed the ring and fitted a regular bearing track, the forks are chrome ring but the headset is non-chrome ring.