![]() High-end aluminium bikes are more advanced than ever and this process can help form complex shapes to influence the characteristics of a particular part of a frame, including weight, strength and comfort. Single-butted tubes are thicker at one end (for example, at the bottom bracket junction), double-butted tubes are thicker at both ends and triple-butted tubes further reduce the thickness in the middle of the tube.īutting is only part of the story and you’ll often see premium alloy frames described as “hydroformed”, which describes the process of adapting the shape of a tube using high-pressure fluid and a mould. Straight gauge tubes are consistent throughout in their thickness, with consistent properties to match. This means it’s thicker at its ends, where there’s more stress and you need more material for the joints to other tubes, while it’s thinner in the middle to save weight. Ribble Cyclesīike tubing, whatever it’s made of, is usually butted. It’s relatively easy to manipulate aluminium tubing to give it different properties along its length and aluminium tubes are usually butted, to ensure stiffness where it’s needed, and save weight where it’s not.īutting helps to save weight where it’s not needed, and improve strength and stiffness where it is. “It’s factors like the width of tubing and its wall thickness that are more important than their strength.” ![]() “All metals have quite similar strength-to-weight ratios,” Glen says. Every ‘recipe’ has slightly different properties. When it comes to aluminium frames, numbers such as 60 – the two most common aluminium alloys used – are a code for the additives (chiefly silicon and magnesium) that are mixed with the aluminium to form each alloy. Steel is itself an alloy of iron, and titanium is predominantly alloyed with aluminium and vanadium. In fact, all metal bike frames are made of alloys for the same reason. That’s because pure aluminium would be much too soft to form into a bike frame, so it’s mixed with other elements to alter its physical properties. You’ll often see aluminium frames referred to as “alloy”. ![]() You may exercise at any time the rights specified under art.Aluminium frames are often referred to as “alloy”, although all metals used for bike frames are technically alloys. Personal information collected by us is stored on secure networks and accessible only to a limited number of employees with special access to those systems.Ħ. We implemented a series of measures to assure the security of your personal data in our systems. ![]() Pirelli will act to secure your personal data and protect it from inappropriate disclosure. However, if you do not do so (i) you will not be able to take part in the Initiative or (ii) to receive product offers or information on promotional activities (a) by Pirelli or by companies within the Pirelli group and/or (b) by select Pirelli commercial partners and authorized Pirelli dealers.ĥ. It is entirely at your discretion whether or not to submit your personal data, including the Material. In the presence of your consent, your personal data might also be used to allow Pirelli and other Companies of the Pirelli Group to inform you about future product offers or promotional activities, always in compliance with the security measures applicable to the data processing.Ĥ. For the Pirelli Cookie policy click hereģ. In order to guarantee the respect of the of the Initiative’s participation conditions, also for purposes of recognition of its related benefits, as well as to prevent any frauds, during your browsing on this website (hereinafter, “Website”), certain information is collected which allow to identify your computer and browser, through files called "cookies" and other similar methods of gathering information (for purposes of this document jointly referred to as '' Cookies ''). We invite you to carefully read the Guidelines on Pirelli’s rights and use of the Material.Ģ. 196/2003, for purposes of allowing you to take part to this initiative (hereinafter referred to as the "Initiative"). Your personal data, including the Material, will be stored in the filing system of Pirelli Sistemi Informativi S.r.l., an Italian Pirelli affiliate assuring the respect of the security measures requested by Legislative Decree n. Prior to providing your personal data as required by the registration form, along with your video shot for the initiative, reproducing your image (hereinafter referred to as “Material”), please read the following privacy notice about the use of your personal data, in compliance with art. ![]() Privacy is a value which Pirelli & C S.p.A., with legal offices at Viale Piero e Alberto Pirelli 25, 20126 Milan (the ”Controller” of your personal data, hereinafter referred to as "Pirelli") recognizes and respects. ![]()
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