Lightbulb moment

Anything related to Vespas... ask tech questions, post helpful info, or just read and learn.
User avatar
djh66
registered user
Posts: 369
Joined: Sun Jan 31, 2010 12:19 pm
Main scooter: 150 special
Location: Bedford UK
Contact:

Whilst thinking about how to solve the front diving issue on my VNB with 10" wheels (front tyre touches inside of mudguard, when using front brake) why can't the spring be repaced with a spring/shock arrangement? So you'd still have a shock at the front, fork stem pivot in the middle and a shock/ spring at the back? Would it work?
Image
Bring Me Sunshine COYH
Ginch
registered user
Posts: 142
Joined: Fri Jan 03, 2014 9:20 am
Main scooter: Vespa 150 Super
Contact:

I think the difficulty would be getting hold of something that was up to the job. If you look at how thick the coils of the spring are, and then think about how big the coils of a coil-over-shock would be... well they'd have to be pretty small to fit into the space without rubbing on everything... I think until you get a 10" fork you should ask around for a heavier spring. Lots of people have them in a box somewhere because it's not a great solution, so you may get one for nothing. Might solve your problem in the shorter term.
User avatar
wack 63
registered user
Posts: 1254
Joined: Fri Nov 27, 2009 9:33 pm
Main scooter: '71 GP TS1
Location: Lincs
Contact:

Although it will compress your damper , why couldn't you make an extension to the screw thing that winds into the spring coils at the top? Possibly a rear damper extension nut cut down and then a spacer block fitted around it? Might be a crap idea but I haven't got one here to look at.
User avatar
djh66
registered user
Posts: 369
Joined: Sun Jan 31, 2010 12:19 pm
Main scooter: 150 special
Location: Bedford UK
Contact:

wack 63 wrote:Although it will compress your damper , why couldn't you make an extension to the screw thing that winds into the spring coils at the top? Possibly a rear damper extension nut cut down and then a spacer block fitted around it? Might be a crap idea but I haven't got one here to look at.
Do you know, I was thinking that very same thing, last night!
Bring Me Sunshine COYH
User avatar
djh66
registered user
Posts: 369
Joined: Sun Jan 31, 2010 12:19 pm
Main scooter: 150 special
Location: Bedford UK
Contact:

Ginch wrote:I think the difficulty would be getting hold of something that was up to the job. If you look at how thick the coils of the spring are, and then think about how big the coils of a coil-over-shock would be... well they'd have to be pretty small to fit into the space without rubbing on everything... I think until you get a 10" fork you should ask around for a heavier spring. Lots of people have them in a box somewhere because it's not a great solution, so you may get one for nothing. Might solve your problem in the shorter term.
I fitted some 10" Bajaj forks at the weekend, they are a straight fit and 20mm longer on the fork stem, so I need a 165mm shock, I cut down a 180mm shock to fit, but the mudguard touched the frame, so I had to p155 about with spacers on the front to lift it away from the frame. The diving was even worse than the 8" forks, however my 8" spring (155mm) is an SIP xstrong spring and the one I cut was standard.
Bring Me Sunshine COYH
Post Reply Previous topicNext topic
  • Information
  • Who is online

    Users browsing this forum: No registered users and 3 guests