Bicycle Handlebars Diameter Standards

Lenghts and angles differ and are important when fitting a bicycle to suit a rider.

Bicycle handlebars diameter standards. This size is used on most mountain and city handlebars including flat bars riser bars cruiser bars trekking bars most porter bars etc. However in terms of attachment standards important dimensions are the handlebar attachment diameter and steering column attachment diameter. The other standard handlebar diameter is 22 2 mm 7 8 inch. Size used on most bicycles with drop handlebars.

Handlebar clamp attachment diameter. Also used on older british aluminium upright handlebars. 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. Also used on some japanese and taiwanese road bars nitto for example.

Which handlebar width should i choose. This dimension is measured practically identically for all the stems. Compatible with 26 0 stems handlebars. A few companies including deda still make bars in the size but 31 8mm remains the road standard.

Standard diameter handlebars measure 25 4mm this refers to the centre point where the stem will attach. 25 8 used by itm ritchey and 3t. Mountain bike handlebars come in a wide variety of widths. A bicycle handlebar is the steering control for bicycles it is the equivalent of a steering wheel for vehicles and vessels but is most often directly mechanically linked to a pivoting front wheel via a stem which in turn attaches it to the fork besides steering handlebars also often support a portion of the rider s weight depending on their riding position and provide a convenient mounting.

Bicycle handlebars are what we would call essential to the process as without them it would be a unicycle which wouldn t end pretty. Did you know rei rei co op have a bike sale and clearance. However 35mm has become widely adopted for mountain bikes. The standard handlebar diameter is 25 4mm on mountain bikes often upwards of 30mm on road bars and cruisers.

26 0 formerly the most common size for road bars previous to the oversize 31 8 clamp. 25 4 formerly the most common size for mountain bike bars previous to the oversize 31 8 clamp. This post will give overview of bicycle handlebar size standards in terms of stem mounting area as well as grip mounting area or bar wrap area for road drop bars. 25 8 mm 23 8 mm 15 16 unofficial in between size used by some italian handlebar makers for handlebars designed to be usable in either iso 25 4 or italian 26 0 size stems.