The 20" wheel unicycle is the most popular size of unicycle, a great all-rounder this Reflex unicycle is ideal for both indoor and outdoor riding. Perfect for beginners or those looking mastering tricks . This Unicycle features cotterless 127mm steel cranks, sealed main cap bearings, laced to a durable 36 hole steel rim. The saddle features a removable grab rail and is mounted to a 300mm knurled seat post.