High Flange – A hub with large ends/flanges, in most cases, High Flange hubs are drilled to reduce their weight. High flange produce a wider bracing angle which results in a larger triangle and subsequently greater lateral rigidity.

Aesthetic Points

In the world of cycling, looks are just as important as function. Many cyclists find High Flange aesthetic and go for them. Some even custom-paint the hubs to make them even flashier.

More Real Estate

The High Flange comes with more real estate allowing wider spacing between each spoke. As a result, the flange is stronger and capable of accommodating more spokes.

Also, the higher position of the spokes on the hub makes it easier to change a spoke on the drive side because the spokes are further away from the rear cog. (This applies only to single-speed bikes.)

Medium Flange – A hub with smaller ends/flanges, currently, this Medium Flange is the most common hub type.

More compliant (potentially)

The smaller bracing angle of low flange hubs against the rim as well as the extra spoke length (with some cross patterns) should, at least theoretically, make it possible to lace a more compliant wheel.

In practice, however, it’s questionable to what degree this occurs because the difference is too slim to notice.

Greater Availability

Since Medium Flange are the default standard, you will have an easier time finding one at your local bike shop.

Lighter Weight

The Medium Flange of low flange hubs is their strongest point. As we all know, road bike fanatics do everything in their power to save grams from every component. 

As shown in the tables above, low flange hubs help you with that goal.