The Ultralight, aluminum frame weighs in at a mere 2.5 kg (5.6 lbs.) and makes this bike optimally proportional for a toddler’s size and weight, yet durable enough to handle kid-level abuse.Includes Extra-Long Seatpost because we know your kid grows like a weed and we want them to stay comfortable and confident on their favorite bike.The Flat-Free Foam Rubber Tires can withstand toddler havoc. In other words, you’ll never have to fix a flat.The official Strider number plate included not only makes this bike race-ready at all times but also shows the world this bike means business.The Easy-Adjust Clamps make adjusting the seat and handlebars for your growing kiddo almost too easy.The Learn-to-Ride Guide comes with every purchase and gives step-by-step advice to help your little one go from baby steps to barreling through the neighborhood.