![]() Freestyle tires are designed for pavement and indoor surfaces. The tread has to provide optimum speed and traction and grip when you're cornering and accelerating. Although they're used mostly off road, the tracks are often hard-packed dirt where low rolling resistance is important. Tires: BMX tires straddle the line between pavement and dirt designs. It's also important to note that the skinnier BMX tire and rim sizes (20 x 1 1/8-3/8 and 24 x 1 1/8-3/8) are not interchangeable with each other or with the 20 x 1.5 or 1.75 tire and rims. Others come with 48 spokes like freestyle bikes, depending on whether the bike is geared more for jumping or dirt riding. Some dirt jumpers are equipped with just 36 super-meaty 13-gauge spokes. Dirt jumper's wheels tend to be a bit more varied. This makes them ultra-beefy for maximum rim protection. So, freestyle bikes come almost exclusively with 48-spoke or mag wheels. However, that 32-spoke light aluminum wheelset designed for BMX racing won't hold up to dirt jumping or ramping. Wheels: It's crucial that the wheels meet your needs. Because accelerating out of starting gates is important in BMX, the wheels are much lighter than those found on freestyle or jump bikes. There are some important parts choices to make when purchasing a BMX bike: The tires are the most heavily treaded of any of the BMX types. They are occasionally equipped with 24-inch wheels, which are a great choice for larger riders. They also bridge the wide gap between BMX bikes and freestylers (beefier than the former lighter than the latter). They usually don't have front brakes and their brawny wheels normally feature 36 rugged 13-gauge spokes, rather than resorting to 48 spokes the way freestyle bikes do. The front cable is routed through a "rotor" or "detangler," which allows the handlebars to be spun completely around without tangling the brake cable.ĭirt Jumper: As the name implies, dirt jumpers (also known as jumpers) are designed for taking flight. Freestyle bikes come with front and rear brakes. Axle pegs are often included (riders stand on them for stunts), although some manufacturers leave them off so you can choose your own. The tires are 20 x 2.125 or wider, with fairly smooth treads, because they're predominantly pavement pounders. The wheels are usually either "mag" wheels made of sturdy nylon (far left in the photo below), or heavy-duty models with 48 wire spokes. ![]() Super-sturdy construction is a higher priority than light weight. Rather than racing, the freestyle bike's ideal use is for flatland tricks, aggressive street riding and getting vertical at skateparks. It's also a great bike for riding to school, the store and the pool. "Full-size" frame, 175-180-mm cranks, 20 x 1.75-2.2" tiresįreestyle: These entered the scene shortly after BMX bikes. Longer top tube than Junior, 170-mm cranks, 20 x 1.5-1.75" tires Slightly larger frame than Mini, 165-mm cranks, 20 x 1 3/8" tires Low standover height, 155-mm cranks, 20 x 1 1/8" tires Also, the Pro and Expert bikes are sometimes available in XL (Extra Long) sizes as well. Our chart below shows the approximate fit based on rider age. Final fitting is best performed in our store. So, if you scratch your frame, there's no need to rush to touch it up.īMX bikes also come in different frame sizes. ![]() Besides weighing less, aluminum is also rustproof. Aluminum frames are lighter and are often made of oversize or exotically shaped tubing. Chromoly frames are a bit heavier and more economical. The frames are light and sturdy, and the higher the price, the lighter they get.īMX bikes are generally made of chromoly steel or aluminum. They usually have 20-inch wheels (24-inch-wheel "cruisers" are the exception), knobby tires, upright handlebars with crossbars, small saddles, long cranks and rear hand brakes. BMX bikes are still designed for racing, although you don't have to race to enjoy the light weight, speed and dirt worthiness of these machines. Pretty soon kids everywhere had them, racers or not. ![]() They were knockoffs of motocross motorcycles and were designed for racing over jumps and around berms in the dirt. Sturdy frame and wheels, rear brake, knobby tiresĬarving local trails, jumping ramps in your friend's back yardīMX: True BMX bikes started it all, back in the late sixties. Sometimes called a Dirt Jumper, these are essentially a fusion of BMX and freestyle bikes Riding at skateparks, learning and performing stunts and tricks Ultra-beefy frame and wheels, pavement-ready tires, cable-detangling headset, axle pegs ![]() Knobby tires, lightweight frame and parts, strong rear brakeĭirt-track racing, going fast off road for short distances ![]()
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