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Bob Mulcher, one of the world’s top marathon motorcycle riders, is spreading his message to End Polio Now.

The Bill & Melinda Gates Foundation received the message, and has partnered with Mulcher’s organization, PolioPlus to end the disease.

The North Sacramento Rotary Club and Mulcher are hosting a book signging this weekend featuring Mulcher’s autobiography, “From Iron Lung to Iron Butt.” Proceeds benefit the fight against polio.