Tools –
Allen key multi-tool, spoke key, teeny chain tool, bit of chain, tyre levers and puncture repair kit all stuffed in a teeny saddle-bag (if you have a large saddle-bag you might be able to squeeze a spare tube or two in as well, although a large gumpy bag will spoil the lines of your bike and mark you out as easy prey for predatory cyclists). Make sure the saddle-bag doesn’t rattle, this can get annoying, especially for other riders. If you can’t stop it rattling then adjust your gears so that they tinkle all the time, and make sure you have a squeaky cleat or creaky crank as well, just for the full effect. With the help of a toe-strap (if you have no idea what a toe-strap is then ask your parents, or the old bloke in the bike shop), a rolled-up rain jacket can be stored under the saddle too. Make sure it’s well secured so an arm doesn’t dangle out and get caught up in your gears ruining the jacket and ripping the rear derailleur off. Make sure you have that special tool for that special bit on your bike that no-one else has a tool for, you know, the 7mm spanner for that bolt that has never needed adjusting ever before but will suddenly decide to come loose 50 miles from home.
I’d advise against a Camelbak for carrying stuff. Apart from the massive faux-pas it would be, if it’s in any way hot it will feel horribly uncomfortable on the back and it will be awkward on any descents – wanting as it will to overtake your helmet. And again, it marks you out as easy prey. Don’t panic about water, bottles will be fine, there’s plenty of petrol-stations and caffs to stop at for refills.
Pockets. Are. Fine. See below…..
Jersey Pocket Etiquette
Left-hand pocket – 2 spare tubes, energy bars/gels.
Middle pocket – lightweight rain-cape, gillet, Buff. As necessary.
Right-hand pocket – more energy bars/gels, and a small bag of monies.
All rolled up and tucked away neatly, no unsightly bulges or dangly bits.