IRONBULL Race Assistance. On Saturday October 17, the IRONBULL Red Granite Grinder bike race will take place in Wausau. Help is needed with setting up/tear down, directing racers on course, timing assistants, and aid stations. Go to https://www.ironbull.org/volunteer-grinder if you are interested in volunteering or contact Andrea at 715-571-4403 or executivedirector@ironbull.org