The 12 Pro model is a natural progression for Strider Bikes. The aluminum frame is the perfect way for STRIDER Riders to take the next step with their riding, whether its onto the playground or the dirt track. We cant wait to see toddlers enjoying life on two wheels in more ways than ever before! Healthy kids develop essential motor skills early in life. Pediatricians agree that learning balance, coordination with exercise jump-starts a child’s growth and development.