are there different size bmx bikes?
BMX Bikes come in multiple wheel sizes, ranging from 12” to 24”, with 20” being the most popular. 20” Wheels are the most common and are the true size for BMX. ... Most BMX Bikes with 12” – 18” wheels, and 24” cruisers have relevant TT lengths to their size wheel. 20” Wheeled complete BMX bikes feature different size TTs.