BO Wheel 7.5cm Dia. x 1.4cm (approx.) for your BO motor, easy to mount, durable, and cheap. These wheels have a hole that accommodates the BO shaft, making it very easy to mount.
Best suitable for the BO motor as it has a perfect hole that fits with the shaft of any BO motor. Use this to make robotic projects like Line Following Bot or Self-balancing Bot, etc.
Note: The wheel is available in designs that will be shipped randomly.