T
TheCafeKid
Guest
TCK, Your post got me thinking since I need to buy new springs and shocks for my little ole thing. Can you post up any links to stuff you found? I read one article from the car bibles guy (he wrote up a post on motorcycle suspension) that was okay and I think I follow but I'm interested in more. Yet, the terms I'm using are just bringing up the vendor sites who will tell me why their product is better not what you should know about how they work.
Thanks.
Well first of all you obviously need to purchase shocks and springs that are set up for your weight and the weight of the bike. Most of these makes already know the weights of the bikes they're targeting, so you just need to figure in your weight, fully geared, into the equation. Don't consider whether you ride with a pillion or not, as that only sullies things up, and you'll end up with a spring to stiff for you to get the proper sag set.
Which brings me to sag settings. This must be dealt with first. No matter how many bells and whistles your new shocks may have, you can't begin to set them up properly without the sag being set properly. Sag, in simple terms, is the ideal amount of travel taken up by the bike with you on it, in gear, feet on the pegs in riding position. In my case, on the ZRX, I'm shooting for somewhere between 35-40mm of sag. To get that, you must first know what the total stroke length is,without the suspension (whether you're working on front or rear..the same applies) being weighted. You measure from a solid, non moving point to another solid non moving point. Write that down. Then you must load the suspension with weight (you and the bike) and measure between those points again. The difference between the two is what your current sag is. If it's less than you need, you need less preload. If it's more than you need you need more preload. But this must be measure first without any weight on the suspension.
From there, depending on how your suspension components are designed you can work in things like compression damping settings ( the most difficult to gauge) and rebound damping settings. The bike must be able to return to full stroke quickly, but in a controlled manner. I can go into a bit more detail, or better yet, show you what I've learned (and I've only scraped the surface, but I can tell you this: already there's not only a marked improvement in handling, but also in my ability to control and KNOW what's going to happen inside and entering corners) while you're out
Sorry Art for the long winded jacking..