Cool - I just remember the difference on an old bike when I jumped from a triple to a double - the speed difference was noticeable. I just wondered if there was a similar jump I'm missing out on.

Good to know it's just down to training from now on. Been mixing intervals with pyramids and afternoons in the garage on a turbo in front of Spinerval DVD's - already knocked a couple of minutes off a 10 mile in just a few months of doing this - so it does show up just how effective doing more than just riding steady and hard on roads can be.

Thanks everyone - have a great day.

John