Numbers On My Rear +2" Ohlins

First off, these shocks are not for sale!

Purchased my XR a little over 2 years ago and have been upgrading it ever since. I have resold some of the items that came on my bike from the second owner, and changed my mind on a few things to something else, but all in all I am pleased with what I have done…so far.

One of the first items I purchased was a set of Ohlins +2" Shocks to replace the stock length YSS Piggy-Backs that came on the bike(these have been sold already). The racebikes used +2", and I knew a little about Ohlins at the time, and that was the direction and look I wanted, so when these became available for sale on this forum, I scooped them up. Very detailed information was given in the sale, and the box came with it (That is value in itself!), so I thought some of you might like to read about it.

SOLD!!! FS: Discontinued Öhlins Race Piggyback's - WHO WANTS EM! | XR1200 Owners Group

My only regret was not having the $$ at the time to purchase the race forks Jeremy was selling with the Ohlins Cartridges, a little after that. Anyhow, he listed the information about the shocks in detail, but once in my posession, I wanted to know what the numbers on the springs meant. While my forks are out getting upgraded, it was time to toss this question to Barrry at KFG Motorsports, and ask them to decipher the numbers on the springs. Sent him the link to the sale, and he further asked me for a picture of an etched/stamped number on the top of the shocks that starts with HD. Here is the info.

Spring Numbers(from the pictures in the sale)
06380-04/21/30



Stamped Numbers:
HD8522
TCHD 001
132616







Barry's Reply:

Ok Corey, to decrypt the spring it is a 06380-04 ohlins spring that is was the stock spring for your shock set HD852 SERIES. It is a progressive spring with a compression rate 24-30 N/mm. It was chosen to match the original machine / rider estimated weight requirements put forth by the factory. There is an upgraded spring set 06380-07 is the part number, they are currently out of stock at Ohlins and they are rated for 30-39 n/mm there is also another 2 set that splits the difference between the two 24-33 n/mm and 27-36 n/mm. Alot of it is dependent on how they feel to you. The 24-33 set is the only one in stock and would only offer slightly stiffer feel to what you already have.

I was originally going to ask based on my weight, what initial settings I should use, but when I installed these, they were very stiff, so a local suspension shop that I have known since before my racing days, Catylist Reaction Suspension Tuning, made some much improved adjustments to them. I do not have the current setting numbers written down. These shocks are still a little on the stiff side, but will revisit the settings after my forks return from Muscle Beach.