- Coil shock, more preload or more HSC?
I’m playing with spring rates at the moment, 450 and 500. I can run the 500 with just 1 turn of preload, and a quarter turn of HSC.
I can run the 450 with 2 turns of preload and about a turn of HSC.
What I’m struggling with is what actually equates to a more balanced shock performance? A lower spring rate, with more HSC and more preload?
Or a higher spring rate with lower HSC and lower preload?
So far I can get either a little bit too wallowy, or a little bit too active.
RicksPosted 8 months ago
Preload just allows you to set the sag properly – your weight on its own might not be enough to give the sag figure you want on a spring that is capable of supporting the travel intended
Adding preload allows you to adjust the force applied to the spring so that when your weight is added, you get the right sag. Many different spring rates & pre load combinations will allow you to get the right sag…the question then is how will the spring support you through the travel and how well does the shock need to be dampedPosted 8 months ago
Yeah, to get a plush feel without bottoming out is proving difficult.
So… Preload won’t affect bottom out?
I’m assuming that I either need more HSC or a higher spring rate.
The riding I do is generally steep, rooty and muddy. Barely anything to Huck.
So… Does that mean I don’t want to be storing energy in the spring, rather dissapting it through more HSC?Posted 8 months ago
I’d be ok with a coil bottoming out – it’s not an air shock so you don’t get that progression at the end
I ran an XFusion Vector HLR which allowed you to alter the IFP pressure and volume independently and gave a bit of control over the bottom out. I’d also be looking to play with the HSR to make sure you weren’t getting packed down after you bottom outPosted 8 months ago
And also to add – what frame is it on, and how does the leverage curve look at the end? May be that the frame isn’t really right for a coil shock so although you can get a coil that’s plush through the travel, there’s no support at the end.
Again – preload doesn’t affect thatPosted 8 months ago
Was sent his link earlier that helped: http://www.sportrider.com/technicalities-spring-rate-and-preload#page-5Posted 8 months agolardmanMember
Sag is a static measurement, and would not be affected by any damper settings.
To find the right spring weight is more about leverage ratio and your weight.
most coil shocks should not need much compression damping, but a small amount of HSC will allow you to use a spring that is not EXACTLY right for your weight. IE: if the spring is too light for you, more compression damping aids in the spring slowing at the end of it’s stroke.
The LSC damping circuit (if there is one) is only about taming the spring for less ‘bobbing’ if that sort of thing concerns you. With a coil shock, most of the usefull tweaks are in the rebound circuit.Posted 8 months ago
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