I have a 2001 DRZ400S with only a little known about its history. I know that I am owner #3, and I know that owner #1 put Race Tech springs in the front supposedly 2 ranges higher rate than stock for his weight. I weigh 240 lbs, so that's good. Now I am replacing the rebound adjustment-less 2001 rear shock with a 2003 Green DRZ (KLX400) rear shock. I would like to keep whatever spring is the stronger one. The KLX spring is yellow in the photo, and has 7 windings. The 2001 DRZ shock's spring is red and has 8 windings, and kinda looks a bit smaller in diameter. I have a suspicion the original owner may have put a Race Tech spring on the back, and if he did it would definitely be stronger than stock. But how can I tell other than mounting and bouncing? Is there a mark somewhere? Can someone with a Race Tech rear spring confirm the # of windings it has, and someone with a stock spring confirm the # of winding it has? https://docs.google.com/file/d/0B0mtjDI3RvJbTHVDVTNKR0pyWFk/edit?usp=sharing Thanks for the help, -Chris, the guy who is adjusting from the mellow/short/small KLR250 to the tall and taut DRZ400S.