Not only can you put together unusual combinations and mix colours, for example, but in the event of a defect, you only have to replace the worn-out part, which helps you save on costs. Our shop also supplies many upper and lower cups separately. The first half stands for the upper cup (between stem and frame) and the second half for the lower cup (between frame and fork). Since a headset always consists of two parts, the standardised designation is also made up of two parts with the same structure. The two numbers after that represent the inner and outer diameters in millimetres.
We will explain exactly what they mean in a moment. indication stand for the design of the headset. An example of the standardised specification looks like this: ZS44/28.6 - EC44/40. takes into account both the head tube of your frame and the diameter of your steerer tube. These are available in different dimensions, which results in a number of combinations. In addition to its function as a handlebar bearing, the headset also serves as an interface between the frame and the fork.
specification consists of three parameters of the headset: design, outer diameter and inner diameter. All important headset dimensions in a uniform designationĮach S.H.I.S.
