Bike Training Wheels Bicycle Assist Wheels Balance Training Tool Replacement Parts Wheels for Girls BikeAdvantage This rear assist wheel stabilizer helps young people ride a bike until they develop a usable sense of balance on the bike, by helping to increase a child's safety and confidence without having to hold the back of the seat.ApplicationBicycle training wheels are commonly used as auxiliary wheels and stabilizing rubber mounts. The Low noise rubber wheel, is more wear-resistant, quieter, and safer.