This appears to have been an event sanctioned through United Clubs of Waco. Here's a list of their member clubs.
BANDIDOS MC
OUTCAST MC
LOS CABALLEROS MC, KILLEEN
LOS CABALLEROS MC, MCLENNAN NORTH
LOS CABALLEROS MC, MCLENNAN EAST
LOS COMANDANTES MC
AKA MANAH MC
AMERICAN LEGION RIDERS, POST 55
AMERICAN LEGION RIDERS, POST 121
AMERICAN LEGION RIDERS, POST 223
AMERICAN LEGION RIDERS, POST 573
AMERICAN LEGION RIDERS, POST 582
AMERICAN VETERANS MC
BIKERS AGAINST CHILD ABUSE, INC.
BLACK KINGZ MC
BROTHERS IN ARMS MC
BOOZEFIGHTERS MC, CH 50
BOOZEFIGHTERS MC, CH 78
BOOZEFIGHTERS MC, CH 99
CHARIOTS OF LIGHT
CIA - KILLEEN
CHRISTIAN MOTORCYCLISTS ASSOCIATION
CIRCUIT RIDER MOTORCYCLE MINISTRY
COMBAT VETS MOTORCYCLE ASSOCIATION
CORRUPT RIDAZ
CHROME CRUZERS MC
DEM BOYZ - KILLEEN
DEM GIRLZ
DISCIPLES FOR CHRIST MM
DOGMEN MC
DRGA MC
ESSAYONS MC
FADED SPADES MC
FORGOTTEN SOLDIERS MC
FREEDOM RIDERS MC
FULL TILT RIDERS MC
QUEEN CITY DIVAS MC
GYPSY MC, BELTON
HONOR BOUND MOTORCYCLE MINISTRY
IN COUNTRY MC
K9 MC
K9 TOO MC
KINGZ MC
LADY LEGENDZ ON TWO MC
LEGENDZ ON TWO MC
LEATHERNECKS MC
LONESTAR KRUSERS MC
LOS PIRADOS MC
MARINES MC
MOOSE RIDERS, C2
NASTY DOGS MC
NEWS MC
NIGHT STALKERS MC
NUBOYZ WIT ATTITUDE MC
OUTSYDAZ MSC
PRIESTHOOD MM
QUEENS OF SHEBA MC
REGULATORS MC, BELL COUNTY
RUFF RYDERS
SHELL SHOCKED MC
SHOW STOPPAZ MC
SILVERBACKS MC
SIX MC
SONS OF BORIKEN MC
SONS OF SOLOMON MC
SONS OF THE SOUTH MC
SOUL HAWKS MC
SOUL II SOUL MC - KILLEEN
TRU RYDERZ MC
VETERANS MC
VIET NAM VETS / LEGACY VETS MC
WIND & FIRE MC, INC.
#1 STUNNAS MSC
1st Cav Riders