Sealey motorcycle lock chains sealey cla109dl this motorcycle chain and disc lock from sealey is a heavy duty 105mm square link chain fitted with durable nylon sleeve for avoiding accidental scratching and damage to the bike features hardened zinc alloy bodied disc lock with anti drill anti saw and anti pick protection on the locking cylinder 4 art approval sealey cla109dl motorcycle chain amp disc lock 105 x 105 x 900mm 4 art approved