Bicycle Quill Stem Sizes

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

Bicycle quill stem sizes. The only other common quill stem diameter is the 25 4 mm 1 inch size used in 1 1 8 head tubes. A quill stem for a 1 inch steerer tube actually measures 7 8 inch 22 2mm in diameter. Once you get the right size by jaredl i ordered this one and when it came in the quill was a 25 4 mm not a 22 2 so be careful of that. This video covers everything you need to know about removing and installing a quill stem from a bicycle including choosing compatible components unseating stubborn quills and final centering.

The quill stem works with a threaded fork. Picture 2a shows a quill stem with a shorter neck angled downwards next to a threadless stem with a longer neck. Price and other details may vary based on size and colour. 4 4 out of 5 stars 14.

Skip to main content. The most common handlebar diameters are 22 2 25 4 26 0 31 8 and 35 0mm. The stem inserts into the steerer tube which is threaded and does not extend above the headset. It is wise to measure your components to ensure that you are installing or ordering the correct stem.

The quill stem existed until the threadless function and due to that it remains the industry standard on utility bicycles of any cost and luxury retro bikes. The stem is the component on a bicycle that connects the handlebars to the steerer tube of the bicycle fork sometimes called a goose neck a stem s design belongs to either a quill or threadless system and each system is compatible with respective headset and fork designs. However in terms of attachment standards important dimensions are the handlebar attachment diameter and steering column attachment diameter. Most mountain and hybrid bikes use the 25 4mm clamp and most road bikes use 26 0mm.

For clamp on stems the fork steerer is 1 1 1 8 1 1 4 or 1 1 2 inches all different enough that they can easily be identified with a ruler and confusion is hardly possible. Promax adjustable alloy quill bike stem 85mm reach 180mm long black. Some modern mountain and road bikes use a 31 8mm handlebar clamp but these likely won t have quill stems.