Road Bike Frame Size Top Tube

Road bike size chart.

Road bike frame size top tube. It s important to have a bit of clearance between you and the top tube in order to easily dismount the bike and comfortably place your feet on the ground when necessary. For those frames with a sloping top tube standover height is normally reported for the middle of the tube. If you re working with a mountain bike frame leave the measurement in inches. They had a top tube and a seat tube that commonly.

Generally each degree of difference corresponds to about a centimeter of top tube length. Multiply this by 2 54 which 56 5 cm. Road bikes are measured in many different ways. The only reason the top tube measurement was ever remotely relevant was due to the squareness of steel and then aluminum road frames.

Standover height describes the height of the top tube from the ground. Say that the length of the seat tube is 22 inches long. Find many great new used options and get the best deals for zambikes bamboo bicycle frame bike 700c road 52 size top tube 532mm horizontal at the best online prices at ebay. This presumes that the saddle would be slid 1 cm farther forward on the seatpost of the frame a.

Multiply the number of inches by 2 54 to find the length in centimeters. Whether you are looking at a horizontal or sloping top tube an integrated or standard. While using your height as a guide is one of the easier ways to get an idea of your frame size. Standover height is the distance between the ground and the top of the top tube.

Thus frame a with a 58 cm top tube and a 72 seat angle can give the same riding position as frame b with a 57 cm top tube and a 73 seat angle. This makes choosing the right size for you difficult. Ideally it should be a little less than the rider s inseam so they can stand over the frame with their feet flat on the ground. Conventional road bikes have seat tube angles within a relatively small range 72 5 74 so if only considering this type of bike you could argue that there only two key dimensions hence some manufacturers have started to use stack and reach to define the relative position of crank and top of head tube.

Compact frames are meant to look more radical than conventional level top tube frames so expect to see an extra two to three inches of seatpost showing when compared with horizontal top tube bikes.