New to Harley's,recently picked up a 2006 standard with low miles.The rear has been lowered and I would like to bring it back to stock height for two up riding.The shocks appear to be factory,but I can't figure out how it was lowered.

 

The original owner probably just got the new threaded studs to lower it, you need to replace them with the OEM length.

 

No offense GM.
Typically with the longer bolts installed the nuts can be turned all the way back towards the shock body, then tighten the lock nuts. This effectively shortens the shock, raising the the rear.

 

It all looks stock underneath so I'll get a jack and see about adjusting the rods.
Thanks