Leggi tutto...[Press Release] - Designed, engineered, and machined in San Diego, California out of 6Al4V Titanium. Ideal for use with OChain, Ebikes, and 4 Bolt 104BCD Spiders. 5DEV Ti Chainrings provide at least 3 times the durability and longevity of your aluminum ring. This results in more time riding, less time...