Different fork rod lengths.

Anything related to Lambrettas... ask tech questions, post helpful info, or just read and learn.
10 inch Terror
registered user
Posts: 1447
Joined: Tue Jun 29, 2010 9:17 pm
Xbox live gamer tag: No.
Playstation gamer tag: PLEASE!
Main scooter: Lambretta LI Imola 185
Location: Farnborough Hampshire
Contact:

Hi all, I've just received a set of 'top quality' fork rods and one is a 1/4" shorter than the other. The shorter one barely sits proud of the spring. Now before I contact the seller for a refund / replacement my question is, will they be ok or not? Thanks in advance Pete.
bristolmod
registered user
Posts: 1741
Joined: Wed Jan 07, 2009 8:42 am
Main scooter: Lambretta TV175 S3- what else!
Location: Bali-Hai bar, Locarno Ballroom Bristol, 1967!- mines a Brown Split!!
Contact:

No...........

Think about it. They need to provide the same amount of "support" (for want of a better word) to both sides of the front wheel. With different sized rods you are starting at a disadvantage anyway, and you are likely to have a front wheel on the p155. Not ideal

The only time they will be ok is when they are fitted to take up the difference fron the mismatched links/ springs/ rebound rubbers etc etc

Sounds like another bit of quality remanufactured crap IMO.

Send them back

Chris
Scootering since 1968.
nelson pk
registered user
Posts: 515
Joined: Thu Jul 08, 2010 12:31 am
Contact:

They dont sound great ........but......forgive me if i'm wrong, it matters more that the springs are the same length. Having fork rods of different length as long as they are longer than the spring they go inside and are long enough to go through the spring stops at the top of the fork they will be fine. It is the length of the springs (and s**t fork buffers)that will cause the wheel to sit on the p155, not the fork rod. The fork rod just goes up and down through the spring stop.
Also different heights on the welds where the spring stops sit will cause it to sit on the p155.
10 inch Terror
registered user
Posts: 1447
Joined: Tue Jun 29, 2010 9:17 pm
Xbox live gamer tag: No.
Playstation gamer tag: PLEASE!
Main scooter: Lambretta LI Imola 185
Location: Farnborough Hampshire
Contact:

I've contacted the guys I got them from and to their credit they didn't quibble and are sending out another set to me. Thanks for you comments fellas.
User avatar
DigDug
registered user
Posts: 788
Joined: Wed May 02, 2012 1:00 pm
Main scooter: Lambretta
Location: Stroud
Contact:

nelson pk wrote:They dont sound great ........but......forgive me if i'm wrong, it matters more that the springs are the same length. Having fork rods of different length as long as they are longer than the spring they go inside and are long enough to go through the spring stops at the top of the fork they will be fine. It is the length of the springs (and s**t fork buffers)that will cause the wheel to sit on the p155, not the fork rod. The fork rod just goes up and down through the spring stop.
Also different heights on the welds where the spring stops sit will cause it to sit on the p155.
Correct

It's the springs that need to be the same length and composition.

Also the stops inside the fork that the springs compress against need to be the same distance from the bottom of the forks and of course a decent, matched pair of links.... :idea:
Did you have to do that?
shocky
registered user
Posts: 2139
Joined: Wed Jan 07, 2009 12:33 pm
Location: cheltenham
Contact:

was the long one to long or the short one to short it miight just be the short one is the correct length ?
We sleep soundly in our beds because rough men stand ready in the night to visit violence on those who would do us harm
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 15 guests