I'm riding a 2005 stock Tuscany and like the bike very much. I've noticed recently that whenever I stand on the pedals or really go hard the bottom bracket will creak and pop. It also feels less stiff than when new, could be my mind jerking me but I think it's real. I'm 6'2" and 230 so I recognize I'm giving it more stress but just wondering if others have had similar experience and have any remedies. The reason I opted for Ti was its durability and strength.