Abus bike folding locks 6050 85 black red white abus 51800 the abus bike folding lock 51800 3 black 6050 85 has been designed for good protection at low to medium theft risk the bars and the lock body are made of particularly light materials and ferrous alloy p p this quality lock has a number of excellent features including 5mm steel bars with plastic coating to prevent damage to the bicycle s paintwork while there is a silicone cover for the lock body with soft touch properties