Originally Posted by
davidad
I have never replaced the bearings on shimano SPD pedals. Every 5k miles I pull the cartridge and pump in fresh grease. When I install the cart. the old grease is pushed out.
My understanding is that having the frame's BB reamed so that the bearing cups are parallel is important for bearing life with an external BB.
I'm planning on tearing this bike down completely to bare frame at some point this winter for a well deserved deep cleaning (over 13,000 miles on bike and has never had a complete tear down), so I may try to take the frame to my LBS to get the BB shell faced, just for good measure.