As these are normal cyle & footways, where only on one day some people cycled around with special bikes, I would not have the parts as tracks. You could theoretically make a relation and put the normal bike path parts into them, and then use trail or route tags on the relation, but tracing it over like that is not useful. I think this should be reverted 100%. Also, unless this event gets much bigger, regular and more official, this data should not at all be in OSM. 