SOHC.co.uk Forums > CB750
Bouncy Forks
SumpMagnet:
Adding spacers to teh top of the forks is an old-school way of stiffening up the springs. You are basically preloading the spring. It has a side effect of reducing the travel leading to some interesting effects under load and bottoming out if you hit a bump on the brakes.
The bodgers way could involve stacks of 2p coins.....which gave you a regular size and was...well...cheaper than buying big washers! I found that one first when I unscrewed a top cap and got a surprise shower of small change.
adespin:
--- Quote from: SumpMagnet on August 22, 2018, 02:15:56 PM ---Adding spacers to teh top of the forks is an old-school way of stiffening up the springs. You are basically preloading the spring. It has a side effect of reducing the travel leading to some interesting effects under load and bottoming out if you hit a bump on the brakes.
The bodgers way could involve stacks of 2p coins.....which gave you a regular size and was...well...cheaper than buying big washers! I found that one first when I unscrewed a top cap and got a surprise shower of small change.
--- End quote ---
The mind boggles :o
Moorey:
A frequently done misconception.
All adding spacers does is limit the amount of travel in a spring. It doesn't stiffen springs at all. The spring rate is the spring rate no matter how many spacers are put in.
Do not confuse a springs, spring rate with a springs, load/design rate.
SumpMagnet:
I think what was really going on was taking up the slack on worn out springs that had a permanent set. Put the springs under load and the bike would sit higher and appear stiffer.
Then you go for a ride and convince
Paulreade:
Are your wheels correctly trued and balanced ?. My front wheel was not fully trued, it had a flat spot , I have improved it but it needs another go, as does the rear wheel. Making a slight improvement on the front made a slight diffence to the bounce I was experiencing although I still need to properly true them both. I have also picked up some 5w oil which I will add to improve the damping. Like you it puts me off riding the Honda a little, but with some patience I suspect it will get sorted.
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