The kryptonite security wheelnutz m10 is an extra security method that will anchor your wheels to your bike fit to the solid axle of your hub and lock your wheel to your frame giving your bike that extra bit of security when wheelnutz are installed your bike must be turned upside down to remove the wheel if your bike is secured to something your wheel cant be removed use the wheelnutz to secure your wheels whilst youre at work or just nipping into the shops use alongside a proper d loc