Alx-295 wheelset; bearing problems
Hey guys, so I have a 2005 Specialized Allez Elite with bearing play on the rear wheel. I bought the bike used 5 months ago, and didn't figure to check out the the bearings on the rear wheel until i got a flat and removed the rear wheel. Turns out it spins as if there are rocks in the bearings. It's amazingly rough. The front wheel doesn't seem to have this problem.
On the Specialized website, the rear wheel is listed as:
"Alex ALX-290, 24 hole, sealed bearing freehub, black"
Would I replace the bearings? Or does this mean it's a cartridge type bearing?
Thanks for the time, and please be nice, I'm a noob with bikes