Classic Equine Diamond Long Shank Small Twisted Wire Dogbone Bit

Sherry Cervi's Signature Collection bits have an excellent feel for quick pickup and release. Mouthpieces of stainless steel and available in many option and degrees of control. 

"I see a lot of barrel racers who reach for the most severe bit in the trailer at the slightest resistance rather than following a natural progression. You should always start mild and work your way up only if needed. I recommend starting a colt or charging horse with mild bits to teach them to yield to pressure while building confidence and establishing correct body position. That's why I start with my smooth D-ring snaffle before anything else, and then move up to the Diamond Draw series." 

-Sherry Cervi 

This is a bit with a longer shank, so it will give you more leverage to maintain rate and body position in turns with speed. 7-1/2" shank.