Extra Tough Folding Lock. Ideal for Electric Bikes. The all-new SIDEKICK Folding Lock has heavy-duty with 5mm thick hardened steel links. Exceptional price point and specification vs. competitive folding lock brands. SIDEKICK is your perfect around-town security companion weighing just over 2lbs. Includes a bike mount and 3 keys. - Weight: 2.2 lbs (1kg) - Link Size: 5mm thick, 6.5in (16mm) center-to-center - Size Folded: 7.5" L x 2" W x 2.25" H (19cm x 5cm x 5.7cm) - Max. Opening Size Unfolded: 11in (28cm)