I purchased a Fuji cross about 5 years ago and was just discouraged about all the tire changing every time, yes every time I rode so I left the sport. I would love to get back into cycling but need some tire advice. I'm 5'11 a stocky 270lb looking to reach 200lb in the distant future. The bike is set up with WTB Dual Duty700c/28 mm rims and Continental Sport Contact 28's. Any suggestions on rim or tire changes so I'm not blowing the front tire out every time I hit a small bump in the road. Thanks for any replies in advance, looking forward to loosing weight the fun way.