Optum Pro Cycling rider Tom Zirbel prepares for this weekend’s Amgen Tour of California cycling event at the Doubletree Inn in Sacramento on Friday. Many pro cyclists are now using 25 millimeter tires, while 19 millimeter tires were the standard not too long ago.
Optum Pro Cycling rider Tom Zirbel prepares for this weekend’s Amgen Tour of California cycling event at the Doubletree Inn in Sacramento on Friday. Many pro cyclists are now using 25 millimeter tires, while 19 millimeter tires were the standard not too long ago. Randall Benton rbenton@sacbee.com
Optum Pro Cycling rider Tom Zirbel prepares for this weekend’s Amgen Tour of California cycling event at the Doubletree Inn in Sacramento on Friday. Many pro cyclists are now using 25 millimeter tires, while 19 millimeter tires were the standard not too long ago. Randall Benton rbenton@sacbee.com

In Amgen cycling race, fatter is faster than skinny and pumped

May 08, 2015 07:21 PM

UPDATED May 11, 2015 06:54 AM

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