Hi Guys,

I have just purchased a new 2016 BMC GF02 105. On my first daily commute (8miles either way) it all feels a little wrong. From a standing start I was being out accelerated by rusty folding bikes. Up hills I was dying. At speed and down hill, the bike was fine, but any attempt to accelerate took considerable effort. Now I have read that the GF02 has weighty wheels however when I came home to ride my old bike, a 63cm Trek 7.0, I instantly realised that I could out accelerate the GF02 on my old £200 Trek 7.0.

For comparison my 61cm GF02 is almost half the weight of the Trek. There is also no way that the wheels on my BMC weigh more than those on my Trek. On closer inspection turning the bottom bracket I can hear a clicking.

Has anyone had this issue? Am I correct in assuming the problem is with the bottom bracket? The tube angle on both bikes are almost identical as is the seat height and crank length, so I cannot believe it has anything to do with my positioning. I can also not report the smooth shifting of the 105's everyone has spoken about. I am clearly going to take this back, but before I accuse anyone of being sold a faulty bike, I would like to have my facts correct.

Does the above point to a faulty bike? What should I do?

Thanks,
Ryan