I am 417 lbs, I just Purchased a Bianchi C-Sport 3 at the end of Dec 2014. I have put 200 KM on this Bike in the past mth... I love it, No issues what so ever.... I have done two 20 mile rides.. and both flawless... I did have new 36 spoke Double walled rims I purchased after my first 20 miles. I did this out of precaution not because i was having any issues.. The stock rims are 32 spoke. and I wanted to beef up a bit. I know that a mth is not alot of time to judge a bike, but I do love it and I am 100% satisfied with it and wanted to pass it on.