Vortex offers a massive range of sprocket sizes and styles, from 29 to 66 teeth. The CAT5 seen here is available in blue, black, gold and red. All Vortex sprockets are completely CNC manufactured to the strictest tolerances — no gear hobbing or stamping help create what Vortex calls the perfect concentric sprocket. Vortex front sprockets are now nickel-plated, giving it increased life and a cleaner appearance. Front sprockets are drilled for less rotating mass. Check out the full Vortex lineup at www.vortexracing.com or call the company at (800) 440-3559.