# How do you measure a drop bar on a road bike?

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The bar’s drop is measured from the center of the flat top section to the center of the bar at the deepest point of the drop. A shallow drop (125mm or less) means your body position changes less drastically from hood to drop than it would with a deep drop of 130mm or more.

## How is road bike drop measured?

Drop: The vertical distance from the center of the bar top to the center of the deepest part of the bend. A drop of 125mm or less is considered shallow; 125-128mm is medium; more than that is deep. Drops: Straight portion of the bar that extends back toward the rider.

## How do I know what size my handlebars are?

Just wrap around the bar at the point you want to attach the Oi to get the circumference size and then divide by pi (…. mmm) to get your diameter e.g. 99.9mm / = 31.8mm. If you have no tape, then use a piece of paper (or string).

## How do I know what size handlebars for my road bike?

The rule of thumb when selecting the correct handlebar width is to measure the distance between the two bony bits on your shoulders – in more scientific terms the distance between your two acromioclavicular (AC) joints. This measurement gives you a baseline – if it’s 38cm, look for 38cm bars – and so on.

## What angle should drop bars be?

On drop handlebars, the ends should angle downward five to ten degrees. This flattens the part of the bar behind the brake levers, turning it into a good and comfortable place to put your hands. Never, ever rotate the bar up, so that the ends aim upward of horizontal.

## What is standard handlebar diameter?

The most common diameter is 31.8mm, but older bars can be 25.4mm and there’s even an oversize 35mm standard being introduced by Race Face that promises even greater strength and stiffness.

## Are all bicycle handlebars the same diameter?

There are only two current standard sizes: Flat bars have a 22.2 mm (7/8″) grip area diameter. Road (“drop”) bars have a 23.8 mm (15/16″) grip area diameter.

## How do you measure a drop bike?

Drop is measured as the distance between the horizontal planes of the deepest point of the top of your saddle and the center of your handlebars. (You can use the top rather than the center, but for repeatability I prefer the center.)

## How much do handlebars drop?

While some pros run very extreme handlebar drop; the typical range for road bikes is 10–15cm measured from a horizontal line at the saddle height dropped down to the handlebar.