ok this does help alittle with the stock shock. The things on top of the springs spin( i think it is the preload adjuster) and will make your bike sit alittle lower too. hit the top one by puting maybe a screw driver on it and hitting it with a hammer. once the top one is at the very top of the threads on the shock it is now time to turn the bottom one all the way up.(MAKE SURE you make them both tite together) you may want to put it on a lift which will make it a little easier. after that turn the compression all the way down(adjustor on the bottom of the shock). it will give it less travel but i have been launching off 8 foot high ledges and only the front shocks bottom out.