This link adds grip and provides a better ride and controls wheeling better. We now have a track link that allows us to go back to 309 MM of rider sag. This is for the street and for the track we are now using 20 to 25MM With the stock link. I like to use 30MM of sag as a starting point for the rear. I believe most people over 180 lbs will benefit from a stiffer spring with less preload, lighter people can simply remove some of the pre-existing preload. I believe this is too much preload it should be more like 10 to 15 MM of preload. The Showa spring is a very progressive spring starting at 77 Nmm and rising to 89 Nmm 55MM. The 1098 Base uses a Showa rear shock, the spring has a free length of 168MM, the one I checked had a preloaded length of 142MM, and this is 26MM of preload. It is 2 way adjustable and has a Hydraulic Spring preload adjuster. Now we get to the top of the line Ohlins The DU788 TTX36 rear shock. The other nut we machine thinner, this again reduces the amount of preload on the spring allowing us to reduce the stock preload of 24MM to what we think is a more usable 12 to 16 MM.

Before we sell a DU515 shock, we take off the nuts and machine the top one to a smaller diameter and machine a bevel on to the top edge, this allows it to go to the bottom of the threads. The problem with both is when you are trying to reduce the amount of spring preload with the stock 160 MM long spring, the double nuts that control spring preload hit the side of the shock before they get to the bottom of the threads.

It is different in that is is three way adjustable and already has Ohlins recommended Track valving inside.

The Aftermarket DU515 shock is similar to the stock 1098S rear shock the DU511. It uses an 80.0 Nmm spring () 160MM free length. The 1098 S uses Ohlins rear shock DU511.This is a 2 way adjustable shock with a street valving spec. Also would any know where I might find a.pdf of stock ride height settings? In a manual or something? Got a deal on a shock and cant tell where im.

I was wondering how you decipher the code printed on an ohlins shock to tell what weight it is sprung for? I can't seem to find much info about it.

Once the total load is greater than the blue spring's preload, the red coupler will come off the yellow locking ring and both springs will be active. So, initially, the spring rate will be the same as the green spring's rate.

The blue spring will not compress any further until the applied load on the green spring reaches the blue spring's preload.

Ohlins spring chart pdf