![]() ![]() On most freestyle, street, and park BMX bikes, the wheels have 36 spokes. Also, they are less consistent than cassette hubs, and skip or jam up far more frequently. The smallest freewheels that can be made is with 8 teeth. The freewheel hub is all but extinct due to several factors. Advantages of smaller gearing hubs include lighter weight, and more clearance when grinding. Instead of the old 44/16 gearing found on almost all older BMX bikes, new bikes use gearing such as 36/13, 33/12, 30/11, 28/10, 25/9, 23/8,and even 22/8, all of which have similar gear ratios of almost 2.8:1. The introduction and widespread popularity of the cassette hub has ushered in the use of smaller gearing on BMX bikes. ![]() High-performance BMX bikes use lightweight 4130 chromoly, or generation 3 chromoly. High range bikes are mostly chromoly or high tensile steel, although the latter is noticeably heavier with respect to strength. Cheaper, low end bikes are usually made of steel. BMX frames are made of various types of steel, and (largely in the racing category) aluminum or Carbon. Though originally denoting a bicycle intended for BMX Racing, the term “BMX bike” is now used to encompass race bikes, as well as those used for the dirt, vert, park, street, flatland and BMX freestyle disciplines of BMX. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
December 2022
Categories |