Mountain Bike Quick Release Wheel. The quick release in the photo reads "Open," meaning that the wheel is not properly fastened and it may come off-even if the wheel and lever feel tight! With the quick-release lever on the opposite side of the bicycle chain, slide the skewer through the front-wheel axle.
A skewer goes through the hub's axle and secures the wheel onto the bike. A quick release axle also allows you to remove the wheel without removing the axle. T hat includes wider tyres, disc brakes and dropped stays on Carrera.
Is it the end for quick release wheels?
Shift and hold the wheel on center and retighten the nut.
WHICH quick release is RIGHT FOR YOU? Bicycle wheels on better bikes come with a device called a quick release which holds the wheel on. These are used because you then do not have to carry tools to remove the wheel.