MS is a compound problem; a result of myelin sheath destruction caused by chemotherapy, radiation, irradiation of foods, environmental - pesticides and herbicides, electromagnetic disturbances... man made electromagnetic fields, and food chemicals, such as msg and aspartame, along with nutritional deficiencies caused by diet and lifestyle.
A "walk", run, or bike ride is not needed to raise money... unless it is used to raise awareness of the true causes.