Old 03-31-09, 03:57 AM
  #9  
sugarkane
Senior Member
 
Join Date: Mar 2009
Posts: 77
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times in 0 Posts
it will keep any crap falling into the bearings from inside the frame it kinda provides a sealed environment for your BB

you could leave it out but it would ultimately be foolish.... and pointless
sugarkane is offline