The new RS 453 PROTECT-O-CONNECT with Trelock Security Level 4 is now also available in the modern TRELOCK frame lock series PROTECT-O-CONNECT. This means high safety for the bicycle. It is equipped with the new Trelock IN-X inner web cylinder and child-proof lock. With its 650g the frame lock is very light and captivates with its elegant, compact design. The Trelock RS 453 is designed for balloon tyres. Optionally combinable with Trelock additional chains and cables. IN-X reversible key with high scanning reliability. Security Level 4 - Security against professional crackers.