Mainly im getting a sore lower back, (coming from a hybrid. Is there a way of raising the handlebars a bit. I only use the drops on the drops and twisty technical stuff. Also the gears seem to be slow changing. Is this a setup issue? Lastly wheels feel rattly and a bit pants do others agree. Otherwise it is a fun quick machine. I have a blue defy 1 2014 Large. Im 6.2 with 32inch inside leg. Considering selling and getting one of the boardman hybrids.