The 6615k microflex is an armoured cable featuring 15mm overlapping steel shells that protect the inner steel cable making this a more secure locking option than a common cable while retaining the flexibility and convenience of the cable supplied with the new snap mount frame bracket for effortless mounting and removal from the bike 15 mm overlapping steel shells protect the inner steel cable the steel shells and the supporting elements of the locking mechanism are made of special hardened s