When choosing the right size for a fat tire bike, there are several factors that a potential buyer should consider. The size of the bikes frame will affect the way that the rider interact with the bike. For example, if the person choose a bike with a frame that is too small for there body, they may feel cramped when riding the bike.
Alternatively, if the person choose a bike with a frame that is too large for there body, they may feel as if their body is stretched out when they are cycling, and they may have difficulty in effectively control the handlebars of the fat tire bike. A correct size of the frame for a fat tire bike will allow the bike to effectively function while maneuvering on difficult terrain. Fat tire bikes use tires that are between three and five inches in diameter.
How to Choose the Right Size Fat Tire Bike
Therefore, the frames of fat tire bikes must provide up to 135 millimeters of space between the fork tines and the chainstays. Because these bikes require such wide tires, there is no universal standard for the sizing of these bikes. To find the correct size for a fat tire bike, a person should use there height as an initial measurement, but also use there inseam length to find there correct size.
A persons inseam length is important for determining how much clearance that they will have when standing on the bike, as well as how far that they must travel with there legs to reach the bikes saddle. For these two reasons, a person with short legs may find that they need a bike with a smaller frame than a person with long legs, who may find that they require more room to maintain there balance when riding these bikes on difficult terrain. Fat tire bikes come in frames of a variety of sizes that is correlated with the height of the individual that is to ride the bike.
For example, extra-small frames are made for individuals that are under five feet, one inch in height, and have top tubes that are in the low fifties centimeters in measurement. Double extra large frames are made for individuals that is six feet, seven inches in height, and have twenty four-inch frames. The sizes are made in such a way that a rider will feel comfortable when handling the bike.
For fat tire bikes, the reach to the handlebars should be between 370 and 470 millimeters, and the vertical stack will adjust according to the rider’s height. Furthermore, the geometry of the bike will also impact the way that the bike handles. For example, the head angle of fat tire bikes is relatively slack, between sixty seven and seventy degrees, which provides stability for the bike when traveling on soft snow.
The length of the chain stays also have an impact on the bike. Longer chainstays provide more traction when traveling on sand, while shorter chainstays provide more agility when turning corners on the trail. Another factor that will impact the performance of a fat tire bike is the size of the wheels.
Twenty six inch wheels with four to five inch tires will provide the most traction on deep snow, but will be heavier than other sizes of wheels for fat tire bikes. For these reasons, twenty seven point five inch or twenty nine inch wheels will allow a person to ride at a faster rate on the trails, but will provide less float when traveling on deep snow. The size of the bottom bracket will also change according to the size of the wheels that the rider chooses for the bike.
For example, a larger drop in the bottom bracket, such as seventy millimeters, will increase the stability of the bike. A smaller drop in the bottom bracket, such as fifty millimeters, will provide more clearance for the riders pedals when traveling over rocks. Another last factor that will impact the performance of a fat tire bike is the materials that is used to build the frame.
Aluminum materials are used for budget builds because they are relatively stiff and durable. Steel frames are used for those who wish to travel on fat tire bikes for long distances because the steel is tough and will smooth out the bumps in the terrain. Carbon fiber is used by racers because it is light and reduces the total weight of the bike to under three kilos.
Finally, the other material that can be used is titanium, which is also light in weight and compliant, but usually costs more money than aluminum and steel frames. Each of these materials will impact the flex of the frame when the person is pedaling the bike. Therefore, the flex of the frame will impact the fatigue of the individual while they are traveling on the bike for long distances.
The different types of individuals who would like to purchase fat tire bikes may desire different types of geometry on their bikes. For example, individuals who wish to travel on the snow will require a type of geometry that allows for more slackness in the bikes angles and lower tire pressures for increased float. Individuals who wish to travel on fat tire bikes in the cities for commuting will prefer an upright frame with shorter reaches to the handlebars.
Additionally, people who plan to travel on trails may desire more aggressive angles in the bikes and dropper seatposts. Lastly, the standover clearance for the individual must be provided. For individuals, there should be between two and four inches of clearance between the inseam length of the individual and the top tube of the bike.
This clearance will allow for the individual to easily exit the bike. Because each brand of fat tire bikes may utilize different names for the frame sizes for there bikes, individuals should focus on the geometry charts to determine frame size for there bikes. For example, a person can determine inseam length by standing barefoot against a brick wall.
The correct height for the saddle is 88 percent of an individual’s inseam length from the center of the bottom bracket of the bike. Beginners may want to size there fat tire bike down to account for mistakes in riding the bikes. Experts in the field of fat tire biking can likely purchase there true size.
Lastly, individuals should not focus solely on the length of the seat tube. Rather, the individual also should consider the stack and the reach for the bike.
