Is everyone else fast? What if I can't keep up?

Try riding as far as you can on a flat road at 25 kmph. If you can ride about 30 kilometers in a little over an hour in varied terrain then you're probably fit enough. Remember that it is always easier when you are in a group and if you start to struggle, don't worry, we've all been there; someone will ride with you to ensure you are ok. We won't leave you behind!