Riding home tonight rear tire went soft but not flat as i was able to make it home. Put the bike on the jack got the spray bottle of sudsy water to look for leak in tire,found nothing. Spray around valve stem seal and spokes and there it is leaking. Is it as simple as retightening spokes or is there a bigger fish to fry here, hope not, any advice kindly appreciated. Have not been riding alot lately as the weather sure is terrible around this area, cause if you don't ride in the rain you're not riding.