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Front forks

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Front forks

Postby Charliebubble47 » Tue Sep 16, 2014 9:10 pm

Hi all

Quick question
Is there a difference in he overall length of the forks between models, say li and gp

And while I'm on is there a difference in length for the handlebar control rods between models

If any one has the dims for both q's that would be grand

Thanks
CB
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Re: Front forks

Postby Markpm » Tue Sep 16, 2014 10:56 pm

Hi CB
What model do you have??
GP forks are shorter on the stem the series 3
Early LI control rods are longer than later series 3 ones
310 mm I think as opposed to 295 in later ones
I may have those sizes completely wrong but I got caught out when changing headsets recently so know for a fact there are 2 lengths
Hope this helps
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Re: Front forks

Postby Donnie » Wed Sep 17, 2014 10:12 am

Hope this helps, got it from the fecker site :-)

LAMBRETTA FORK LENGTH INFO

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
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Re: Front forks

Postby Charliebubble47 » Fri Sep 19, 2014 11:21 pm

Thanks gents that's exactly what I needed
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Re: Front forks

Postby Dimitrios_231 » Sun Sep 21, 2014 10:32 am

GP left,Li150 Special with chrome ring,same as Li150 right.

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Re: Front forks

Postby Charliebubble47 » Sun Sep 21, 2014 11:15 pm

Hi
I have a serveta Lynx year 83 with a none chrome ring frame
So what type of forks should a have, bought the scoot as a box of bits and thought everything fitted ha ha
The head set for the controls is the sx type, ten Bob bit type, I bought the a series three set but it seems a bit big had the file on it to make it fit, just seems a bit excessive. Everyone says there's nowt standard on a lambretta :D :D
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Re: Front forks

Postby Dimitrios_231 » Mon Sep 22, 2014 7:00 am

I don't know many things about Lynx models.
I think that instead of brackets they have the long studs to accommodate the fatter Spanish dampers.

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I remember the electrics,too complicated.

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There was a gap at the headset and the horncast.

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