Thomson Available Black 40 mm Bicycle Stems
About Thomson - Thomson is leading with innovative design for two primary markets - aerospace and cycling.
These models are available for online purchasing and can be shipped directly to you.
We define color as the main color of the item. It may have accents or highlights in other colors.
Stem length is measured from the center of one clamp to the center of the other clamp. This measurement is sometimes known as the reach or extension.