Lowering rockshox sector rl dual pos coil

[BenGraham]

Hi so I'm looking at putting a RS Sektor RL dual pos coil on my cotic soul. The idea being that it will be a very capable trail bike that can do a bit of XC and a bit of burlier stuff when I chose too. The fork in question seems to be a 120-150mm but apparently there is also a 110-140 which would be the better option (but the pickings are slim and I've got a good deal on the 120-150 and I'm happy with it so long as its not an issue).

 

The question is what is involved in modifying it or is it simply a setting that I could change. Do I need a space or something perhaps? And is it necessary the Soul is only officially rated to 140. And apparently its a barrel of fun there but the consensus is it isn't rated for 150mm so you shouldn't go there. Is this strictly true will I overstress the frame and potentially cause myself distress in the mid to long term or are they covering their bums due to legal issues and actually I shouldn't be so worried? Supposedly the soul and BFE are perfect for travel adjust since their geometry has been designed with multiple travel options in mind.

 

What do you guys think. Need to make a decision on this quick since I've got people waiting in the wings.

[droo]

You'll need a new air spring to lower it, which isn't cheap. I can't see an extra 10mm making a massive difference to the stresses at the head tube though, but that's between you and your dentist. There is often a +-5mm variance in fork travel from what it says on the box anyway.

Edited July 10, 2014 by droo

[deanbean]

You'll need a new air spring to lower it, which isn't cheap. I can't see an extra 10mm making a massive difference to the stresses at the head tube though, but that's between you and your dentist. There is often a +-5mm variance in fork travel from what it says on the box anyway.

It's a coil sping, isn't it?

[BenGraham]

It's a coil sping, isn't it?

Yes coil spring. Air wasn't available and also I wanted the dual position.

[BenGraham]

You'll need a new air spring to lower it, which isn't cheap. I can't see an extra 10mm making a massive difference to the stresses at the head tube though, but that's between you and your dentist. There is often a +-5mm variance in fork travel from what it says on the box anyway.

This is what I was thinking. Glad someones at least on my side here.

[droo]

My bad, not enough coffee. I haven't actually stripped a dual position coil yet, so I actually couldn't say - I do know that with the dual position air spring it's not as simple as just adding a spacer. Coil may well be an easy fix though.

[deanbean]

My bad, not enough coffee. I haven't actually stripped a dual position coil yet, so I actually couldn't say - I do know that with the dual position air spring it's not as simple as just adding a spacer. Coil may well be an easy fix though.

Would the spacer be on the damper side Droo, or on the spring side

[droo]

Spring side, making the negative spring longer.

 

Suspension tops out on a negative spring which stops it from topping out with a clunk - this can be either a coil (Fox, Manitou etc) or air (most Rockshox). You'll only top out on a damper a few times before it fails.

[dyls]

I've just put this fork on my Kona coil air, its a really awesome fork for the price. Mine is the 150/120mm option, You can get the spacer kits for them to space it down to 140, I haven't researched it though just read that in the manual somewhere, I can double check tonight when I get home.