So I was riding and my bike and noticed my cadence wasn't registering.....I looked down and my cadence magnet was gone! (this happend the other day and I found it, today no luck) So I have 2 questions, how do I get another one and is there a better way to mount it? I have Shimano cranks that have a little "hollow" on the back side of them, I had the magnet mounted as the instructuons stated. Any ideas? I guess I could shoe goo in addition to the zip tie?