
Luckily, Daniel was uninjured. Equipment failure is a big cause of bicycle crashes. Most equipment failure can be avoided by frequent maintenance of your bicycle. Daniel confirmed that his bike had been creaking for some time. So he was fortunate. If you hear unusual noises, inspect your bike thoroughly. Remove your cranks and inspect the bottom bracket. Look a the frame, especially the chainstay on the drive side. Examine your chain, fork, brakes.

Many cyclists always do the ABC Quick Check before every ride. Check that your tires are properly inflated (A="air"). Check that your brake cables and levers (B="brakes") are fully engaged. Check that your crankset, chain, and cassette are in good working order (C="crankset"). And make sure the quick release on your wheels and seatpost (if applicable) are closed and tight. Doing the "ABC Quick Check" before every ride is a good way to detect possible injurious mechanical failure before it happens.
If you bicycle commute every day, then you will also want to have regular service on your bike. Many routine fixes (replacing chains, tightening spokes) you can do yourself, with the help of online resources or a comprehensive bicycle maintenance book
If you think you will do most of your own wrenching, my advice is to buy a complete bicycle tool kit
The reality is that things will eventually wear out on your bike, just as parts wear out on an automobile or a dishwasher. It's not a big deal, as long as you pay attention to your bicycle's condition, and make necessary repairs.
Image: Paul Dorn.
Visit: Broken derailleur messes up New Year's Eve, Bike Commute Tips Blog
Visit: Repairs/Maintenance, Bike Commuting Tips
Visit: Paul Dorn's Bike Commuting Tips Site