I bought this bike about a month ago and have put about 100 miles on it. It has a Sun tour NCX-D RL-A fork with remote lock out. I've been riding on the road and have had the fork locked out. Today I unlocked the fork for the final 8 miles of my ride. When I got home I noticed a film of oil on the upper tubes. This is the first suspension bike that I have bought new and never experienced this before. I sort of feel that it is something that needs to be addressed. Am I right in feeling this way or is it a normal condition.