I think they worked pretty good for biking!

"Here at GearChase.com we love to ride bikes! One of the issue we always seem to run into is getting laces stuck in the chain and chain ring. If you despise cramming your shoelaces in your shoe, or under your other laces, the Lace Locker dose a great job of keeping your laces out of harms way." Read the full GearChase.com review by clicking here!