Tips. The quick-release levers should be on the left side of the bike. Quick releases must be fully closed to ensure safety. If you close the lever in such a way that it aligns with the fork (see animation) and stays, you'll have something to grip while squeezing the lever.

What's the difference between thru axle and quick release?

Thru axles attach the wheels more securely and reduce the likelihood of wheel attachment caused by human error. Quick release axles allow for more flex in the front end of the bike, which hurts handling- Disc brakes can cause the fork arms to flex.

What is thru axle hub?

A thru-axle (TA) is a wheel attachment system that secures a wheel on a hub between a pair of dropouts on a bicycle frame or fork. The thru-axle threads directly through the fork/frame holes and into the wheel hub, which makes the wheel secure from detaching.