Unravelling the Mystery of Removing the Rear Wheel
The most important step to removing the rear wheel is to shift your rear derailleur into the smallest cog. This lines the derailleur up furthest away from the bike and allows you to just pop out the wheel.
It's easier to understand when you can see and follow along, but here's the skinny. You should not have to touch the chain at all. Nope. Not at all.
- With your right hand (unless you're in the UK), shift with the small lever into the smallest cog.
- Stand on the non-drive side of the bike, facing backwards, with your saddle resting on the side of your hip.
- Release the quick release on the rear brake (Shimano push up the lever on the brake caliper; Campy release the button on the right shift lever).
- Open the quick release skewer on the rear wheel (you don't need to remove the skewer, just loosen it).
- With your left hand, hold the nose of saddle.
- With your right hand, hold the wheel.
- Simultaneously, lift up with the saddle and push down with the wheel.
- Dance the cassette out of the chain (see this is easier to do than write) and remove the wheel from the bike.
Voila!
Reverse the process to put the wheel back in. The most important concept is that you want to aim the chain onto the small cog (or the 2nd smallest cog). Then just push down and the wheel will fall into the drop-outs.
Practice this ten times and you'll have it for life.