I am having some difficulties replacing a pair of cartridge bearings in my powertap sl 2.4 hub. My bearings are ridiculously worn, but I haven't had the time to replace them until now. When I pulled the axle out, I realized that the sleeve inbetween the bearings takes up all the space in between. So basically, I can't get inside the hub with something to tap the bearings out since the inside is just one smooth tunnel running from cartridge to cartridge.
Does anyone know what I should do to remove the bearings?