How do you measure a bottom bracket height?

How do you measure a bottom bracket height?

Bottom bracket height is a vertical measurement from the ground to the center of a bike’s BB when the suspension is fully extended. Another measurement, BB drop, is a vertical measurement from a horizontal line through the center of the bike’s hubs to a parallel line at the center of the BB.

How do I measure a bike for my height?

To find the correct sized bike you will need to measure your height and your inside leg. For your height, stand against a wall and mark the wall with a pencil so it’s level with the top of your head. Then measure from the ground up to the mark (having someone to help might make this easier).

What height is a 26 inch frame bike for?

26-inch bikes are a common size for adults. Riders with a height of 5′ and above are typically tall enough to comfortably fit on bikes with 26” wheels. However, riders taller than 5’5” may be better suited to the slightly larger 27.5” or 29” models that offer better traction and stability.

What does BB height mean?

bottom bracket
BB Height is the vertical distance from the ground to the centre of the bottom bracket. This can vary on a bike for numerous reasons. Tyres and fork lengths are the biggest culprits for adjusting the BB Height of a bike.

What is a low bottom bracket height?

Road bikes usually have a BB drop of between 65-75mm. Most road bikes designed for racing and 23c tires fall between 70-68mm. Increasing BB drop just a few millimeters can substantially increase the stability of a bike by positioning the rider lower within the confines of the wheel’s center axis.

How do I calculate bottom bracket drop?

To measure BB drop, the first step is to draw a line from one axle to the other—the bicycle’s wheelbase. Step two is to draw a line that runs at a right angle from the wheelbase to the center of the bottom bracket. That distance is measured in millimeters. That is BB drop.

What is considered a low bottom bracket height?

How tall should you be for a 27.5 bike?

27.5 MTB FAQs 650b and 27.5 are interchangeable terms which mean the same thing. What height is a 27.5 bike for? If you’re shorter than 165cm (5′ 5″) you’ll be better off on a 26″ bike. If you’re taller than 183cm (6′) a 29″ MTB will be more suitable.