Today I was on my own after suffering through the flu last night. I have been wanting to change the oil on my old Rock
Shox since they have been having trouble rebounding on my rides to work. I hit up a few bike shops to see what they had and to pick up some Rock
Shox oil. I found the juice and headed home for some lunch- I hadn't eaten since the Dinosaur Restaurant Thursday night. After lunch I was feeling a bit drained and laid down for a nap. I will probably be sleeping good tonight in an effort to fully recover from this bug that hit me. I could have slept the rest of the day today, but I pulled myself up to get the boys to the dog park.
It was unbelievable how many people were at Shawnee Mission Park today. I have seriously never seen so many people out there. I can understand everyone wanting to get out after some of the harsh winter days we have had, but it was still pretty muddy and the lake was completely frozen. Regardless, cars were parked as far up and down the street outside of the dog park as I have ever seen. Our dogs were a little frazzled by all the people as they kept getting lost. Trevor is bad about turning and running when he thinks he is lost. Consequently, I was yelling at him often so he could figure out which way he needed to be going. I don't know if it is them getting old or the fact I was dressed pretty plainly in dark clothing. Anyway, it was definitely an interesting experience for the three of us. Hopefully more warm days are in our future and fewer cold ones.
Below is the work I did on the Rock
Shox this afternoon. After picking up some special Rock
Shox REDRUM oil, I partially disassembled the shocks to change the oil.


After reading through the service manual online I could have completely taken apart the shocks, but given my maintenance ability I chose not to. It isn't that I can't fix things, but more often than not it seems that I stumble on some simple little part and spend way too much time trying to get things back to working order.
After letting the air out of the shocks and taking off the cap I dumped the old oil into a cup. It didn't appear the oil was in bad condition, but I am hoping the amount or type of oil was the problem with the rebound of the shocks. It could be the cold temperatures or not enough air, but with unseasonably warm temperatures today it was impossibly to tell by comparison.

I poured approximately 35 ml of REDRUM oil into each side and put the caps back on. This time I aired each side up to 50 psi to help the rebound. Being 195 lbs I think the 40 psi I had in there before was probably too little. I actually used the race configuration for people over 180 lbs, as shown in the Rock Shox Mag 21 Service Manual. I'll be interested to test it to see how it works tomorrow.