Headset manufacturers may also choose to specify the stack height for the upper and lower bearing stack by adding an ‘H’ followed by the stack height in millimetres.

Skaberne af denne LED cykellygte ønskede at få folk til at smile ude på vejene, og det er helt sikkert lykkedes for dem! The contact surfaces of the cup and cone are machined to a smooth finish that matches the profile of the bearings, and this is what they run on. They’re super simple to fit or remove and are guaranteed to get you noticed as they dangle seductively off the back of your saddle.Proper bearing maintenance ends with proper lubrication, which could be anything from sticky waterproof grease to thin frictionless lube. A chunky affair that attached to the front hub, next to the middle of the wheel, it used acetylene – a gas you wouldn't want anywhere near your balls – to knock out a fiercely bright white light. The Bicycle Bookend isn’t just a functional item but an artistic statement that brings together their love for literature and cycling. Expanders also mitigates against crush injuries of the carbon steerer, as they provide a ‘solid’ element to support the carbon when the stem is clamped in place.

The Rapha Commuter Jacket, with its sleek design, ensures they look the part while being shielded from the elements. What the ABEC standard qualifies is bore diameter (an acceptable variation of the size of the inner bearing hole), parallelism (width variation), and the radial raceway run-out (variations in the groove in which the balls sit). A t-shirt with a clever play on words, combining “cyclist” and “psychologist” to create the term “cycologist. Crown races are often headset specific, with many different variations of the precise dimensions and interface with the bearings. These are presents that not only reflect the recipient’s passion for cycling but also seamlessly integrate it into their daily routine or home decor.This means it is self-centring on the bearing and, when preload is applied, the angled shape ensures it supports both axial and lateral loads. It can quickly inflate bike tires, fits different valve types, and even comes with a puncture repair kit. This is an excellent choice for those who own a valuable bike or e-bike and want to ensure it’s well-protected. If there is demand for this law to be recognised, and for it to be named, I would suggest: the Bike Balls Law.