On Sunday, she and about 170 other veterans will roll out of the Marriott Hotel in north Houston, and ride more than 500 miles through central Texas, stopping in College Station, Georgetown, Fort Hood, Waco and Cleburne, before ending in Fort Worth as part of the UnitedHealthcare Ride 2 Recovery Texas Challenge. The first challenge began in 2008, with just 14 cyclists. [...] the organization has grown to hold the "challenges" in states across the country and as far away as Germany, serving more than 1000 riders a year. The Texas challenge first started in Houston last year, and is one of six Ride 2 Recovery is holding this year, meant to help veterans dealing with PTSD, traumatic brain injury or other war wounds. "The majority of our riders with multiple amputations use adaptive or hand cycles but with the financial support R2R received from UnitedHealthcare, they were able to build him a custom upright to adapt to his prosthetics," said Lisa Dimond, a spokeswoman for the ride.