I am a noobie and a clyde that is getting into cycling. I just rode and finished my first MS150 from Houston to Austin. I have about a 2 month old Masi Evoluzione 105 Carbon bike. It came with a 20/24 Ritchey Pro rims. I have had nothing but spoke popping noises from the beginning. During the 150 I actually broke 2 rear spokes. I even asked the guys at the LBS if these rims are sturdy enough for my size. I am 6'5 260LB. I am going in tomorrow to see what they can do for some better wheelsets. I was thinking about going with the Mavic CXP-33 with 32/36 Ultegra hubs. I have read that these are good sturdy wheels. Would these be suffice or shoudl I look at something different? While I will always be a clyde, I hope to get down to about 240lb.