Is This Bike Lock Really Angle Grinder-Proof? | No bike lock is immortal, but Altor's SAF u-lock claims to be pretty close. Test Editor Dan Roe breaks out the angle grinder to
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Litelok claims to have made the world's lightest and toughest angle-grinder resistant locks - BikeRadar
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Can we destroy an angle grinder resistant bike lock? | New Hiplok D1000 Tested | Cycling Weekly - YouTube
![Altor The SAF Trailer Lock | SAF 2516 | Trailer Hitch Coupler Lock | Fits 2 5/16" couplers with a Flat Lip | Heavy Duty and Angle Grinder Proof Coupler Lock for Altor The SAF Trailer Lock | SAF 2516 | Trailer Hitch Coupler Lock | Fits 2 5/16" couplers with a Flat Lip | Heavy Duty and Angle Grinder Proof Coupler Lock for](https://m.media-amazon.com/images/I/61+OR4xR5+L._AC_UF894,1000_QL80_.jpg)