Apex18
Expert
I just bought an 07 Apex GT. So far i love the sled but i just want to set my back suspenions a little bit stiffer. I look underneath and i see that yamaha set the spring tension half way inbetween max and hard on the shock. There is about 1-2 inches os adjustment on each side. So i think i am going to set it max hard. But when i look in the manual, max soft and max hard is only about 3/4 of an inch apart recomended, meanwhile there is about 3 or 4 inches of adjustment threads on the shocks for the spring. So is a person able to adjust to the max on the the shock, or will it do damage some how? Sorry for the stupid question...Jord
Apex18
Expert
Ok thanks for the info. I'm 170 pounds and i noticed i could bottom the sled out already. So i just want to set the spring stiffer as i don't want to ride with the dampining on max all the time, i would like to be able to ride with if in the middle setting. I wasn't sure if you could just set the spring to max stiff on the shock, so i thought i would check on here first and it looks like you can only go so far.
One more question....adjusting the rear rebound clicker on the EC shock, that just affects how fast the suspersion rebounds correct? Can it be set to help with bottoming out? I'm sure once i get the spring set stiffer it will be good anyways.
Sorry for these question i am a newbie when it comes to this stuff, my 550 fan just had budget shocks and had no adjustment, so with the 07 GT i don't really know what to do. Thanks, Jord.
One more question....adjusting the rear rebound clicker on the EC shock, that just affects how fast the suspersion rebounds correct? Can it be set to help with bottoming out? I'm sure once i get the spring set stiffer it will be good anyways.
Sorry for these question i am a newbie when it comes to this stuff, my 550 fan just had budget shocks and had no adjustment, so with the 07 GT i don't really know what to do. Thanks, Jord.
Apex18
Expert
It also says in that topic that that procedure is for all 05 and 06 mono's, i imagine it works for the 70 mono with the re-valved shock?? Thanks
Alatalo
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The thread "How to set proper ride height on Apex GT" describes the procedure to get 40-45 mm of suspension sag ("sit in"). Please note that 40-45 mm of suspension sag ("sit in") is critical for good suspension function. This measurement will make sure that you have got 2/3 of the suspension stroke available for compression strokes and 1/3 of the suspension stroke available for rebound strokes. The spring adjuster should be used only to adjust the sag ("sit in") measurement to 40-45 mm.
Using the spring adjuster to stop the suspension from bottoming out is not recommended. By adjusting the spring adjuster you are actually not changing the stiffness of the spring - you are only changing the preload of the spring. This means that you are adding an equal amount of spring force all over the stroke. The same amount of spring force that you are adding to the bottom of the stroke is also added to the initial part of the stroke. To stop the standard shock and spring from bottoming out you will likely have to add quite a lot of spring force. This means that you are also adding quite a lot of spring force to the initial part of the stroke thus destroying your 40-45 mm of sag (likely ending up with a number much smaller than 40 mm).
If you want to stop the suspension from bottoming out the correct way is (besides from using more compression damping) to go for a stiffer spring. A stiffer spring will add spring force to the bottom of the stroke but not to the initial part of the stroke. Because of this you will get the spring force where you need it - in the bottom of the stroke to stop the bottoming out - not in the initial part of the stroke where it will destroy your sag measurement...
Using the spring adjuster to stop the suspension from bottoming out is not recommended. By adjusting the spring adjuster you are actually not changing the stiffness of the spring - you are only changing the preload of the spring. This means that you are adding an equal amount of spring force all over the stroke. The same amount of spring force that you are adding to the bottom of the stroke is also added to the initial part of the stroke. To stop the standard shock and spring from bottoming out you will likely have to add quite a lot of spring force. This means that you are also adding quite a lot of spring force to the initial part of the stroke thus destroying your 40-45 mm of sag (likely ending up with a number much smaller than 40 mm).
If you want to stop the suspension from bottoming out the correct way is (besides from using more compression damping) to go for a stiffer spring. A stiffer spring will add spring force to the bottom of the stroke but not to the initial part of the stroke. Because of this you will get the spring force where you need it - in the bottom of the stroke to stop the bottoming out - not in the initial part of the stroke where it will destroy your sag measurement...
