8.5 mm thick locking loop With the universally adjustable hole spacing (68.5-107.0 mm), the 6950M can be easily mounted on all common bicycle frames The loop, the housing, and load-bearing parts of the locking mechanism are made from specially hardened steel Set with loop chain 6KS/100 and saddle bag ST5950 X-Plus cylinder for extremely high protection against tampering, e.g., picking