I've heard that under braking rear suspension is less effective. Any truth to this? Anyone have any science to back it up? I havent noticed this on my NRS yet.

It reduces the movement of the rear suspension, hence the IBS system that's available on the Orange 223.

Cheers mike, how does it reduce the movement of the shock?

Is it when brakes r locked on or does it occur even when you are braking lightly?

Basically, caliper is mounted to the frame so when you apply the brake it stops the chainstay from pivoting around the axle so locking up the suspension. You'll notice it as a sort of hopping from the rear when you brake hard downhill on a rough surface.

Depends completely on the rear suspension design.

Some will be more affected than others under braking. Also the amount of travel will affect this as the longer the travel the more noticeable it well be. Some big hucking bikes have a floating disc mount so that the force exerted by the rear brake is isolated from the rear swing arm.

I have a Stumpjumper FSR and putting the brakes has now noticeable effect on the feel and function of the suspension just like the catalogue says.

IMO it's not a problem on shorter travel bikes.

It reduces the movement of the rear suspension, hence the IBS system that's available on the Orange 223.

wicked.

So the force of that the brake is applied will determine the amount to which the suspension is affected correct?

IMO it's not a problem on shorter travel bikes.

i've only got 100mm rear suspension on me NRS. I havent noticed anything yet. I didnt realise this was a common occurance on full sussers.

Will a floating disk mount solve the issue completely?

I doubt whether you'll notice it unless you really try. It's certainly not worth adding a floating caliper mount to solve the 'problem'. Orange have dropped the IBS from the 224 for 2006 and that has much more travel than your Giant.

Cheers mike. On a slight tangent. with my fox F100X. How the hell am i supposed to set the sag on them? I mean i have set the psi reccomended for my weight but i cant test the sag as its obviously got the inertia valve that locks it out from rider induced bob.

Any ideas?

check how the floating caliper works at Brake Therapy

... and i do have a slight problem with this on my Mount Vis.

To set the sag on the F80/100X's you have to sit on the bike for a few minutes and wait for it to sag.

ahhh ok cheers mike. So they will sag given a few minutes. Your being bloody helpful tonight mike :p

I have my moments Smidge :-) I tend not to be helpful when some cock who clearly knows nothing about a subject comes and sticks his nose into a sensible thread.

Anything else I can help you with?

naa i'm good now thanks mate thanks. Gonna grab a hot choc and hit the hay.

*btw u refering to me on that carbon thread? :p

Nah not you, I'm not going to mention any names though. I'll get myself into trouble again!

:) i alway love a good forum fight.

ne way - cheers for your help matey - time for sleep.