This may be off topic. I recently purchase a 1970 Raleigh 3-speed, sports model. The 3-speed hub shifts flawlessly. I am doing some routine maintenance such as greasing the crank bearings and front wheel bearings and was wandering if this is necessary for the rear hub since it takes oil. I have often wondered where the oil gets out of the hub since the hub can only hold so much. It appears that most of it exits out the cog side judging by the crud build up. If I should grease the ball bearings in the hub, can this be done without removing the hub from its outer casing? I am little apprehensive about losing little parts like the pawls.