The term was mentioned in this thread:
http://www.pirate4x4.com/forum/showthread.php?threadid=58056&highlight=inboard+spring

Yeah - did a search...

Why put the springs inboard?
More flex?

(from a pure "road racing" perspective, you want the spring pick up point to be as far outboard as possible)

Well, we're not road racing here, so yes- generally "flex" is the only reason.

However, FWIW my fronts are inboarded to 27.5" vs. 29", but not specifically for flex...

Yeah - no "road race" weanies on this board... :D

Anyway - for those why might not have been paying attention in Geometry/Trig class....

Inboard springs theoretically have less travel for a given wheel travel. This means you can use your existing lenght springs (and their limited travel) and get more wheel travel.

This all comes at a cost however (and I dont mean buying steel to weld). The effective spring rate DROPS as the springs are brought inboard. For crawlers this may be a good thing. Essentailly it means that a given spring pack will feel "softer" as the springs are brought inboard.

For example a 1" of wheel delfection may have been .90" of spring travel at the stock location and might be .08" of travel as the spring is brought inboard...

Of couse for the Mall Runner types - this means a greater prepensity to "roll".

I can think of two additional "advanced suspension" topics here:
- forced articulation (aka Scoprion)
- mono spring (aka centered spring)

But back to my original question... I just wanted to know if there was another reason to inboard springs that I hadent thought of.

More tire to spring clearance. I don't know if you had thought of that already...:D

Thanks...Didnt think of that....

Must be cause I still gots skinny 31"

EGad - next big thing for the wanna look like rock cralwer is the "phantom dually" look :rasta: