Hi . I have just joined the site as I am relatively new to cycling. I did go down to Paris last year on my old bike but it was just too much for the old thing to attempt our trip to Brussels this May. I bought a Carrera Zelos 2014 yesterday from Halfords and it's a great looking bike. The trouble is I took it out today on a training run, and it. Is so uncomfortable. The tyres are rock hard and I can literally feel every jolt in the road shoot up into my teeth. This is horrible as I am used to my old bike with lovely comfy tyres. What do I do about this? Are the tyres just bog standard ones? Can you in fact get tyres that won't make you feel like you are riding on rims alone? Also I can shift my saddle back and forth. Should I be bent over a lot when I cycle or more upright? Sorry if this is a really stupid post, as I said I am very new to all this. Thanks Jools