PLAY IT SAFE! The highest level of security from the ABUS range: The GRANIT X Plus 540 U-Lock offers the best protection against theft for your bicycle Specially hardened steel, power cell technology for protection against impact and attempts to force open the lock, XPlus cylinder for the greatest protection against tampering: The GRANIT X Plus 540 U-Lock combines the highest-quality materials with the latest technology for protection against theft! It is a first-class lock which protects your bicycle when the risk of theft is high.