"We're here to support the Emily's ride and her family and her friends and everybody," said Christine Baca.
Baca and a couple of thousand people rode Sunday in Emily's Parade, the 6th annual event held to benefit the I Love U Guys Foundation created after the shooting at Platte Canyon High School and the death of Emily Keyes.
"It's amazing," said John-Michael Keyes, Emily's father, "the support of the biker community is humbling."
The foundation educates schools about safety and provides materials to help with emergency response.
So far about 800 Colorado schools have adopted the 4-step emergency protocol (The Standard Response Protocol) that helps students, teachers and first responders in case of a crisis.
Keyes estimated between 2,000 bikers, volunteers and runners came out to the event, which overall, drew between 3,500 and 4,500 people, the most that's ever attended.
"They're supporting the foundation, they're supporting what we've done, they're supporting and honoring the memory of Emily, Columbine High School and the symbolism of riding from Columbine to Platte Canyon High School," Keyes said. "It's really bigger than any one person and it's a totally stunning day."
"We stand behind this," said biker Jason Martinez. "It's something we all believe in, no matter what race, color, religion, anything like that. We all come in numbers and can make an impact and a change."
The bikers ride from Columbine to Platte Canyon. Sunday, there were plenty of people along the road to cheer them on, including five-year-old Emma Lyons.
"Watching my papa do the ride," she told 9NEWS.
She doesn't yet know what he's riding for, not yet.
"When they're old enough that we were here to support something bad that happened and hope that it doesn't happen ever again," said Emma's mom Sarah, who also brought Emma's little sister Maci to watch the ride near Conifer.
Keyes said the turn out this year was great. But he couldn't yet give 9NEWS a tally of how much money was raised for the foundation.
The five year anniversary of the Platte Canyon School shooting is on Tuesday.
For more information about the foundation, visit http://www.iloveuguys.org/
(KUSA-TV © 2011 Multimedia Holdings Corporation)