Jasper Fire Chief Greg Van Tighem rides his bike to raise money and awareness for the Multiple Sclerosis (MS) Society of Canada.  His solo, unassisted journeys have taken him from Arizona to Jasper, from Haida Gwaii to Winnipeg—in winter, on a “fat bike” equipped with wide tires—and through Yukon to Inuvik along the Dempster Highway, a route only passable when the tundra is frozen. The hardship endured by people living with MS has inspired his drive to help find a cure.