Sheldon Browns Bicycle Glossary St. Stack bolt The stack bolts are the small bolts that hold the chainwheels to the spider of a crank. Stack Height The stack height is the vertical space taken up by the headset. With a conventional threaded fork, the steerer tube is longer than the head tube by some amount. If a headset is chosen with a stack height greater than this difference, there may not be enough of the steerer free above the upper bearing race for the keyed washer and lock nut to be installed. Locks Safes And Security Pdf. In the case of threadless headsets, the stack height also includes the height of the part of the handlebar stem that clamps to the steerer. Stainless Steel A family of steelalloys, usually containing 1. TjuA21k/0.jpg' alt='How To Install Threadless Headset And Fork' title='How To Install Threadless Headset And Fork' />Stainless steel is rust resistant, and very tough, but is generally not the best choice in applications where surface hardness is of primary importance, such as bearings. Stainless steel also has somewhat lower yield strength than steel alloys optimized for that characteristic, and is somewhat more difficult to weld, so it has only rarely been used for frame tubes. Last sentence added by John Allen. The primary bicycle application for stainless steel is for spokes. Virtually all modern high quality spoked wheels have stainless steel spokes. Stainless steel is also used for high quality control cables. Stamped. Cut from a flat sheet, usually of metal, by a powerful machine which works like a cookie cutter. Cheaper dropouts and many sprockets are stamped. A piece may be additionally formed after it is stamped. Standover Height One of the prime dimensions of a bicycle, this refers to the height of the top tube above the ground. If the standover height is too tall for a given rider, mounting and dismounting are awkward and dangerous. Conventional wisdom is that the standover height should permit 1 3 inches 2 8 cm of clearance between the top tube and the crotch of a rider straddling the frame, for road use. For off road riding, considerably more clearance is required. See my article on Frame Sizing. Starley. Two members of the Starley family in England were great pioneers in the early days of cycling. James Starley was instrumental in the development of the high wheeler bicycle. He produced the first all metal bicycle, and invented the tangent spoked wheel, which is used to this day. His nephew J. K. Starley designed and built the Rover, the first commercially successful rear drive safety bicycle, which is the ancestor of all modern diamond frame bicycles. Star Fangled Nut A special nut that is designed to be hammered into the steerer of a bicycle with a thread lessheadset, such as a Dia Compe Aheadset. The adjusting bolt screws into the Star Fangled Nut. Cane Creek 40 IS42 IS52 Short Cover Headset. The 40 Series headsets have set standards on performance, durability, and value in the Cane Creeks headset line. Shop from the worlds largest selection and best deals for Bicycle Forks. Shop with confidence on eBay In todays tutorial, well learn how to adjust a threadless headset, otherwise known as an Aheadset. For this job, youll need either a 5mm or a 6mm allen key. Threadless Forks. Threadless type forks have no threads on the outside of the steering column. Headset bearing adjustment is done by pressure from an adjusting cap. The star fangled nut has two barbed steel flanges that allow it to be forced downward into the steerer, but which prevent it from moving upward. If you ever need to remove a star nut, the easiest way is by driving it down and out the bottom of the steerer with a hammer and punch. Star nuts are only for use on metal steerers and should never be used on carbon steerers. Forks with carbon steerers generally come with special expansion plugs that serve the function of a star nut, without the sharp edges that might damage the fragile carbon steerer. Star nuts are available in several diameters to fit different types of forks. Stay. A thin, usually straight, structural member Seatstay, chainstay, fender stay, mixte stay. Stayer. A bicycle used for motor paced racing, usually behind a motorcycle. Steel An alloy of iron and carbon, usually containing between 0. Steels used in bicycle construction are commonly alloyed with chromium or manganese and molybdenum. Chromium molybdenum or cromoly Cr. Mo steel, also known by the numerical designation 4. A%2F%2Fwww.sheldonbrown.com%2Fimages%2Fheadset-threaded.jpg&hash=ffe539f48b22b2686fa98cf8904e95e2' alt='How To Install Threadless Headset And Fork' title='How To Install Threadless Headset And Fork' />Although steel is used for most high quality bicycle frames, the use of steel instead of aluminum for many parts is often the result of penny pinching. Nobody should have to ride a modern bicycle with steel rims, brakes or handlebars. The only reason steel is now used for these parts is to scrimp on costs. This was not always the case. As recently as the 1. British. Indeed, for many years, Raleighs slogan was The All Steel Bicycle. Steel parts of this era were often high in quality. DFzyANRlI/hqdefault.jpg' alt='How To Install Threadless Headset And Fork' title='How To Install Threadless Headset And Fork' />Steersman. British term for the Captain of a tandem. Matlab Software Free Download For Windows 7 64 Bit. Steerer. The steerer, or steering column is the upper part of a front fork, to which the handlebar stem and the turning parts of the headset attach. The steerer is not visible on an assembled bicycle, being entirely concealed inside the head tube, headset and a thread less or pinch bolt type stem if one is used. Steering Axis. The centerline of the head tubeheadset, the axis about which the handlebars and fork turn for steering and balancing. Stem Shifter A type of shift lever which mounts on the shaft of the handlebar stem. These were popular in the late 7. Stem shifters, along with brake extension levers, encouraged riding using only the top of drop handlebars. This riding style was popular at the time, because many casual cyclists bought bicycles with drop bars for reasons of fashion and style, even though drop bars were not suited to their low intensity riding style. Unfortunately, this riding position gives rather poor control of the bicycle, mainly because the hands are too close together for good steering control. Also, stem shifters are difficult to shift precisely, because with the shifters behind the stem, there is nothing against which to rest the hand. Most stem shifters are friction shifters, worsening the problem. Stem shifters also present a danger in a collision. Depending on what gear you have selected, stem shifters can be like having a dull knife aimed at your groin If your bike has stem shifters, consider upgrading to something safer and more convenient. S. T. I. A Shimano buzzword standing for System Total Integration. This normally is used to refer to Shimanos combined brake levershift lever systems, particularly those designed for drophandlebars. S. T. I. is similar to Campagnolos Ergo system. S. T. I. uses the main brake lever, pushed inward, to select larger sprockets, and a smaller, auxiliary lever inside the brake lever to select smaller sprockets. S. T. I has the advantage that it is not necessary to remove a hand from a brake lever to shift, but the disadvantage that the lever returns to the same position after every shift, so you cant tell by feel which sprockets you have selected until you get to the last one. And then you may have shifted to a crossover gear with a bad chain angle. An alternative for drop bars is bar end shifters, which keep the hands on the handlebars, though not on the brake levers, and which move to a different position with each shift. Bar end shifters are much less expensive, and less complicated, too. This comment added by John Allen. See also the article on this site about repair of STI levers. Sting Ray Schwinn trademark for a family of wheelie bikes. These have become quite valuable to collectors. Stoker. A tandem rider who is not responsible for steering, usually the rear riders, as opposed to the captain. The term comes from the workers who shoveled coal to power steam trains and steamships. Stoker Lever A dummy brake lever hood assembly. These are designed to act as a hand rest for a tandem stoker as the brake lever hoods do on a solo with drop handlebars. On fixed gear bicycles that only have a single brake, some riders install a stoker lever on the other side of the handlebar for symmetry.