[Poser]

I have a '02 Giant AC1. It has the Rock Shox Pro Delux with a 700lbs spring in it.

I am wondering is anyone knows the actual size of the spring and what is the, excuse my stupidity about the terminology, the biggest weight spring I can get.

E.G. Can I get a 900lbs spring for it?

Thanks
Kosin Trouble

 

[Tenchiro]

The stroke length is 2.0". You could buy a 900lbs spring, if your huge, but the average is between 600-700lbs. My AC2 came stock with a 600lbs spring, and has the same shock. I weigh 230 and need to upgrade, to about 700 or 750lbs.

 

[Poser]

hmmm ok the next question is how do you tell what spring you should use? I weigh 215lbs but I was thinking of putting in a 800-900lbs spring to help stiffen up the rear to make it easier for climbs. Or should I be looking at something else.

Kosin Trouble

 

[Tenchiro]

Someone on anoth thread posted this link. I am not sure how accurate it is though, but it might help.

 

[Shencycle]

I just punched in a few different paritculars .....seems to be pretty close!!

In addition, when I was changing out rear shocks on my ride...I called FOXRACINGSHOX and they calculated everthing for me...the asked similar questions to what that site asks......so you might want to give the manufacturer, of the shock you are looking to buy, a call.....

 

[Tenchiro]

I calculated for my AC2, and came up with an average of 726lbs.