Rock shox Motion Control?

BloodMonkey

Hi
I have been playing with the compression wheel thing on my new pair of pikes and i cant quite work out how to use it propperly. Would anyone be able to give me a guide to using the floodgate thing and compression?

ride_whenever

Which ones, floodgate sets the amount of force required to overcome the lockout/compression damping, and the compression affects how stiff the forks are, but i know the definition of compression isn't quite right...

supersonic

Its all in the instructions, with force diagrams. If you don't have any, can download from the SRAM/RS site.

nicklouse

and then if you have any questions tell us which pikes you have. and which pop lock you have.

BloodMonkey

i have a pair of 2008 pike 426 coil U-turn.... I have been messing around with the compression valve again and it doesnt realy do anything until you get it just before 90 degrees from the wheel where it makes some squirty noices, but doesnt realy do alot, then after 90 degrees it just locks.
Also the 2008 instructions booklet is pretty poo, as it doesnt realy tell you anything about the pikes, but alot about some of the other forks in the same sort of disiplin.

supersonic

The same system is used across a range of forks.

The Motion Control adjuster is a low speed compression damper, its effects can be quite subtle (ie preventing brake dive and bob). At full adjustment it locks the fork out leaving 20mm of travel or so. But there is a blow off valve for bigger hits - the force of which can be adjusted by adjusting the Floodgate adjuster.

BloodMonkey

i was playing with it today and i think i have gotd it dialed now

Splasher

For anyone interested, a suspension system usually comprises two elements: a spring and a damper.

The force of the spring is proportional to the displacement. In other words the more it is compressed the higher the force as we all know. The damping is proportional to the velocity. In other words the faster the suspension moves, the higher the force the damping provides. So the spring is designed to move the suspension back to it's original position, and the damping to return the suspension back to it's original velocity (i.e. zero). Without damping, suspension would be like a pogo stick.

Compression damping controls the rate of damping applied on the way down, and rebound damping controls the rate on the way back up. Control of rebound damping is more important than control of compression which is why a lot of forks have pre-set compression but almost all have adjustable rebound.

So when you hit a huge bump next time, remember, it's the damping circuits that have absorbed that energy and all the spring has done is reset it all in time for the next one.