I got the stocker with the bike and I see it's rated at 9kg. I'm sure my tent and sleeping bag will not exceed that but have you guys loaded the stock rack and tested it out ? Reason I'm asking is questions about the subframes strength. Read a number of posts about the frame cracking when loaded. My rear fender has not been drilled yet so if it's not worth it I will rather leave it as is and get another Giant Loop.