[KensRedZed]

You need to find a way to keep the garage a few degrees warmer than the ambient tempurature to prevent humidity from forming dew on the track. Sometimes a few bright light bulbs left on 24/7 will warm a small room a few degrees just enough keep the humidity down. Cheap heaters.

Hopefully your garage walls don't breath too much to let fresh humidity in. Nothing a little plastic won't solve.