hey!! My husband has a 2008 fat boy and has now stripped his third belt. ... keep replacing with HD belt but within 2 months it's shredded again. Is there something else that he can do to fix this problem?? Any advice is greatly appreciated. Thsnks
Like Halo said, pulleys and alignment are suspect. This is assuming he's treating the belt properly and not twisting it, kinking it, or bending it too tight when he installs it.
If the pulleys weren't replaced with the belt, that would be the first thing I would look at. Specifically the teeth. Check for delamination. Next would be belt tension.
Check the belt guards and see if there's contact. If you had a way to get the rear wheel in the air, put it in neutral and just hand turn the wheel to listen for any friction/rubbing noises.