my 650 gt is 16.400 km now and ý make 150 km every day,except sundays.ý bought it 4 months ago and ý have no problem with it.just the lights blew up two week before.and ý changed them and it cost to me 6 euro.in my opýnýon,the only weak part of býke is handle bar.it is being so light over 140 km.ý thýnk,you are so unlucky.you can not be sure ýt wont happen to you wýth haya or r1.