Author Topic: LM2 fork springs.  (Read 1124 times)

Offline Stevex

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LM2 fork springs.
« on: December 31, 2014, 10:50:19 AM »
Can anyone tell me the length of the two springs inside each fork leg on a Le Mans 2 please?
They differ from the one piece items of most other big Guzzi's of the period and after a lot of searching I can only find one reference to the 'as new' lengths. Gutsibits quote the following on their advert for the springs; 350mm / 95mm.
I'd like confirmation because I've just measured the springs from one of my forks and they're 335mm / 94mm; need to know if i've got to buy some new one's.
« Last Edit: December 31, 2014, 11:10:05 AM by Stevex »
Steve
1980 Le Mans II
2009 Honda CB1300S
2005 Aprilia Tuono
Chief mechanic to wife's 696 Monster

A 'gnat's cock' is an accurate unit of measurement.

Offline LeRoy

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Re: LM2 fork springs.
« Reply #1 on: December 31, 2014, 11:27:46 AM »
According to my Parts Book for the Le Mans II, it uses the same two-piece spring set as the V1000 G5 and SP 1000 of the same era. These are part numbers:

17.52.69.60 (long) 350 mm
18.52.66.60 (short) 97 mm

It sounds like your springs have settled a bit, especially the long one. You can order a new set from MG Cycle, or another supplier nearer to your UK location, under a part number for the set of 18.52.69.60. Have a look here:

http://www.mgcycle.com/index.php?main_page=product_info&cPath=197_199&products_id=827

For about twice that price, you can directly swap in a set of Wirth progressively wound springs:

http://www.mgcycle.com/index.php?main_page=product_info&cPath=197_199&products_id=1142
« Last Edit: December 31, 2014, 11:29:58 AM by LeRoy »
LeRoy (Bob Sharp)
Rochester, MI  U.S.A.
'86 LM 1000 (since new in '86)
'79 V1000 G5 (as of '08 and since sold)
'76 V1000 Convert (since Nov. 09)
'83 1000SP (as of Oct. 15)


Offline Stevex

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Re: LM2 fork springs.
« Reply #2 on: December 31, 2014, 12:07:40 PM »
Thanks for the info Bob.
I'm going to order a set of originals as I've taken a lot of weight off the front end with an Airtech fairing and not fitted the side fairings.
Steve
1980 Le Mans II
2009 Honda CB1300S
2005 Aprilia Tuono
Chief mechanic to wife's 696 Monster

A 'gnat's cock' is an accurate unit of measurement.

Offline Stevex

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  • Posts: 587
  • Location: North Yorkshire, England.
Re: LM2 fork springs.
« Reply #3 on: January 03, 2015, 05:39:47 AM »
My new springs arrived today from Gutsibits. Labelled up as 18.52.69.60, so they're the correct items.
However, they measure out at 346.5mm for one long spring, with the other one at 340mm.
I've emailed Gutsibits and am awaiting a reply; seriously pissed off though.
Steve
1980 Le Mans II
2009 Honda CB1300S
2005 Aprilia Tuono
Chief mechanic to wife's 696 Monster

A 'gnat's cock' is an accurate unit of measurement.

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