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Post by fenz on Nov 24, 2006 16:40:30 GMT -5
Pulled the caps on the forks to investigate machining up a preload spacer.Was suprised to find a metal tube spacer about 75mm long allready in there.It took a fair bit of effort to compress the spring to get the fork cap started back on the thread.I am guessing that there would have to be some sort of spacer in there as without it you would have a gap between the cap and the spring.
Any body got some info on the standard fork???.Trying to firm up the front as it is quite soft without buying new springs.But i guess they are still the standard 28 year old springs might be time for an update.Ikon progressives might have to go on the wish list.
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Post by StewRoss on Nov 24, 2006 17:31:23 GMT -5
Hi, Yes that's about right. If you look on here there's some info on front and rear suspension modification (Wizz). Ikon do make various springs and others do as well. Wizz's suspension is set up for racing though and the springs he use may be a little firm for road riding. On one of mine I have shorter (possibly car valve) springs on top of the others and it works well. These were on one of the bikes when I got it so I don't know where they originated from. They show up a deficiency in the standard damping though and possibly gold valves will assist there. I have these matched to Koni's on the back and they work well together. It's important to have the front and rear suspension matched as well. Too hard at either end and the handling is compromised. From my MX days the bike should go down at the front and the rear evenly (more or less) if you push down on the centre of where you sit on your normal seat. Get someone to hold the bike up vertically as you do this. On a road bike the bike won't move as much (as a dirt bike) of course. You also have to watch that you don't 'coil bind' the springs if you decide to fit a longer spacer as well. All a spacer will do is to pre-load the springs, it won't change the spring rate or strength. SR  |
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Post by fenz on Nov 25, 2006 22:00:00 GMT -5
Thanks for the info Ross at the moment the back is heaps stiffer than the front which makes corners on bumpy roads pretty interesting.I am in the process of upgrading the rear shocks so once that is sorted i will match the front to these.
I will be building a track bike for our local circuit over the next 12 months so this set up on my road bike will go a long way to helping me set the track bike up.
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