Aleris demonstrated also how the use of 3.5 mm thick 7000 aluminum alloy in the production of car struts allowed them to reach the same crash performance as UHS steel with a 2-mm boron, but led to a weight saving of 40%. 7075 is one of the best-known aviation aluminum alloys. This was developed by Sumitomo Metal of Japan in 1935. In the production of aircraft, the aluminum alloy 7075 began being used, beginning with the Mitsubishi A6M Zero deck…
Most of today’s modern e-Bikes are equipped with a front wheel-drive, rear wheel-drive or mid-drive. So, what’s the difference? How are the benefits or drawbacks of a rear hub-motor or front hub-motor versus a mid-drive system? As many people start to select an e-Bike with 250W drive, the question is frequently asked – Hub-motor or Mid-drive? Which is better? Which one is right for exactly my operating conditions? My opinion is that each 250W drive type: front, rear or…
Since its introduction in the 1930s, when lightweight and strong elements of duralumin frames were fastened together with locks or rivets, at last century’s end, bicycle frames began to use glue and bond-lock connections. Modern duralumin analogs, such as the 7xxx series of alloys, have already surpassed duralumin strength and are also used in the construction of bicycle frames. Robust but lightweight metals have been attractive to makers since the first bicycles. This industry went from a wide variety of…