Originally Posted by Artkansas
Very useful to prevent a graze or a bump if you fall off the bike out of sheer klutzness; zero use if you're hit by a car or otherwise in danger of serious injury. (The helmet spec requires the things to be good for about a 12mph hit, taking the mass of the head only. None of them greatly exceed it.) Wear one if you like - just don't take the thing seriously because then "risk compensation" may set in.
Anyway. I'd suggest a Selle SMP seat - the cheapest and widest one for a bike with this riding position. And security skewers for the wheels (a cable can be cut in a single snip; skewers are much more hassle.)
Re. the U-lock, read www.sheldonbrown
.html - because if you don't use your u-lock with cunning then even the mightiest will be removed in less than a minute with a bottlejack.
Other good things:
- Kool Stop Salmon brake pads if you're going to ride in the wet
- Marathon Supreme tyres in whatever width the standard tyres are - fast, grippy, highly puncture resistant. Ask for a refund on the standard tyres.
- Ergon grips
- A bike mirror. Use it as an extra source of rear vision, not as a substitute for looking behind you when manoeuvring.
- A cycling multitool with hex keys
- A chain cleaner and cleaning gunk, chain lube, chain cleaning brush.